A circular solenoid contains 100 turns of wire and carries a current of 2 A. Its radius is 1 cm and its length is 10 cm. Calculate the magnetic flux through one turn of the wire making the solenoid.

Answers

Answer 1

The magnetic flux through one turn of the wire making the solenoid is 7.88*10^-7 T m^2.

B = unI

= 4pi*10^-7*(100/0.1)*2

= 0.00251 T

Therefore, Flux = B*Area

= 0.00251*pi*(0.01^2)

= 7.88*10^-7 T m^2

Magnetic flux is a measurement of the entire magnetic discipline which passes thru a given vicinity. It's far a useful device for helping describe the outcomes of the magnetic pressure on something occupying a given vicinity. The size of the magnetic flux is tied to the specific location chosen.

The SI unit of magnetic flux is the Weber (Wb). A flux density of 1 Wb/m2 (one Weber in keeping with rectangular meter) is one Tesla (T).

A magnetic subject describes a location in which a magnetic pressure may be felt. Magnetic flux describes how a good deal of magnetic discipline passes through a place.

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Related Questions

A substance that has 1500 liters and which has a density of 250 kg / m3 determine the mass of said substance

Answers

【Answer】Therefore, the mass in said substance is 375 kilograms.

                   

                               [tex]\red{ {\hspace{50 pt}\above 1.2pt}\boldsymbol{\mathsf{Procedure}}{\hspace{50pt}\above 1.2pt}}[/tex]

This is an exercise on fluids and their fundamental characteristics.

We start to solve, obtaining the data:

DATA:v = 1500 lt = 1.5 m³d = 250kg/m³m = ?

                                   Conversion from liters to m³

                                      [tex]\boldsymbol{1500\not{l}*\dfrac{1 \ m^{3} }{1000\not{l} }=1.5 \ m^{3} }[/tex]

To calculate mass: multiply density by volume.

                                       [tex]\boldsymbol{m=d*v \ \ \to \ \ \ Formula}[/tex]

We clear our data in the formula:

                                       [tex]\boldsymbol{m=250\dfrac{kg}{\not{m^{3}}}*1.5\not{m^{3}} }[/tex]

                                        [tex]\boldsymbol{m=375 \ kg}[/tex]

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Verification of laws of reflection of sound (Record Work)

Answers

The Angle of Incidence is equal to the Angle of Reflection.

What is the Verification of laws of reflection of sound?

Take a wooden drawing board and fix a white sheet of paper on it. In the middle of paper draw a straight line and Mark a point B on it. Draw a perpendicular . Place a mirror on line such that the flat side of the mirror is along the line. Hold the mirror in the mirror holder.

Fix two steel pins P and Q on the straight line AB at least 10 cm apart. Look for the images of the pins P and Q and fix two pins P a such that P', Q', and images of P and Q are all in the same straight line. Remove the pins and draw small circles around the pinpricks.

Remove the mirror and Join P'Q' which produce the straight line to meet at B. Measure ∠ABN = i and ∠CBN = r. It is found that ∠i=∠r. This proves that the Angle of Incidence is equal to the Angle of Reflection.

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Along the frictionless path you have chosen in question 8, the main force(s) acting on the puck after receiving the kick is (are):
O a downward force of gravity.
a downward force of gravity, and a horizontal force in the direction of motion.
a downward force of gravity, an upward force exerted by the surface, and a horizontal force in the direction of motion.
a downward force of gravity and an upward force exerted by the surface.
none. (No forces act on the puck.)

Answers

The main force(s) acting on the puck after receiving the kick is a downward force of gravity, an upward force exerted by the surface, and a horizontal force in the direction of motion.

What is friction?

Friction can be defined as that resistance that one surface or object encounters when moving over another.

So therefore, the main force(s) acting on the puck after receiving the kick is a downward force of gravity, an upward force exerted by the surface, and a horizontal force in the direction of motion

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A certain motor is capable of doing 5600 joules of work in 10 seconds. What is the power output of this motor?

Answers

Answer:

Power output of the motor is 560W.

Explanation:

Power output = ?Work done = 5600JTime = 10s

Power output = work done/timePower output = 5600J/10sPower output = 560W

Therefore the Power output of the motor is 560W.

You took a second ball headed to a cliff. You dropped this ball straight down with a velocity of 9.3 m/s. The ball hit the ground exactly 8.0s after you released it. How high is the ciff?​

Answers

Answer:

The cliff is 74.4m.

Explanation:

The reading above clearly state that a ball is dropped straight down with the speed of 9.3m/s and hit the ground exactly at a time of 8.0s after you released it. And it is asking for the distance of the cliff.

In speed formula make distance the subject.

Therefore Distance = speed × time

Distance = 9.3mls × 8.0s = 74.4m

Therefore the cliff is 74.4m.

6 An infinite non-conducting sheet has a surface charge density o = 5.80pC/m². (a) How
much work is done.
by the
the electric field due to the sheet if a particle of charge
ue to
q+1.60x10-¹°C is moved from the sheet to a point P at distance d= 3.56cm from the
sheets. (b) If the electric potential V is defined to be zero on the sheet, what is V at P

Answers

a. Work done = 2. 0648 Joules

b. Electrical potential, V = 4. 03 × 10^10 volts

How to determine the parameters

a. Work done = force × distance

Force = density × acceleration due to gravity

Force = 5. 80 × 10

Force = 58 Newton

We have that distance = 3. 56cm = 0. 0356 m

Work done = 58 × 0. 0356

Work done = 2. 0648 Joules

b. The formula for electric potential is given thus,

Electric potential, V = [tex]k\frac{q}{r}[/tex]

r = 0. 0356m

k = Coulomb's constant = [tex]8.98*10^9[/tex]kg⋅m3⋅s−4⋅A−2.

q= 1.60x10^-¹C

substitute into the formula

Electric potential, V = [tex]8. 98[/tex] × [tex]10^9[/tex] × [tex]\frac{1. 6 * 10^-^-1}{0. 0356}[/tex]

Electric potential, V = [tex]8. 98 * 10^9[/tex] × [tex]4. 494[/tex]

Electric potential, V = [tex]4. 03 * 10^1^0[/tex] volts

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In an antique automobile, a 6-V battery supplies a total of 48 W to two identical headlights in parallel. The resistance of each bulb is:

Answers

Answer:

The resistance of the each bulb is 1.75 ohm.

Explanation:

The Power P supplied by the battery is given by the formula,

P=VI

where V is the voltage and I is the current.

Then the total current through given parallel circuit is I=P/V

Given P=48 W and V=6 V the value of I is

I=48 W/6 V

I= 8 A

Since both bulbs have same resistance and are connected in parallel so the current through each circuit will be half of the total current. Hence the current through each circuit I₀ is 4 A.

The Resistance R is calculated using formula R=V/I₀.

So the resistance is

R=6 V/4 A

R=1.75 ohm

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Answer:

The resistance of the bulb is 1.5 ohm.

Explanation:

The power P delivered to the whole circuit is given by the formula,

P=VI

Given  P= 48 W and V= 6V, the current in the circuit is

I=P/V

I=48/6= 8 A.

Since the bulbs are identical and are in parallel, therefore the current through each parallel circuit is half of the total current. Therefore current I1 through each bulb is 4 A.

The resistance is given by the formula,

R=V/I1

Hence R=6/4 = 1.5 ohm

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Determine the launch speed of a horizontally launched projectile that lands 26.3m from the base of a 19.3m high cliff.

Answers

The launch velocity of the projectile is 13.28 m/s.

What is projectile motion?

The motion of an object thrown in the air under the force of gravity is known as projectile motion.

Since the object is launched horizontally, its initial velocity along the vertical direction is zero. From the second kinematic equation,

s=u*t+(1/2)at^2.

where s is the displacement, t is the time, u is the initial velocity and a is the acceleration. Since the height is decreasing, so it will be taken negative.

For the vertical motion, s=-19.3 m, a=-9.8 m/s^2 and u=0. Put the values in the above equation and solve it.

-19.3 = (0)*t+(1/2)*(-9.8)*t^2

19.3 = (1/2)*(9.8)*t^2

t=1.98 s

Since the velocity along the horizontal direction is constant, the displacement along the horizontal direction is given by the formula,

X=vt

where X is the horizontal displacement, v is the initial horizontal velocity and t is the time.

For the horizontal motion, X=26.3 m and t=1.98 s. Put the values in this equation and solve it.

26.3=v*(1.98)

v=13.28 m/s

The launch velocity is equal to the initial horizontal velocity, so it is equal to 13.28 m/s.

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Gneiss and quartzite rocks are found in the metamorphic surface bedrock in which new york state landscape region ?

Answers

Answer: It's mostly found near Jamestown , New York

A type of electromagnetic radiation that has a higher frequency than visible light is Question 15 options: ultraviolet infrared radiowaves microwaves two of the above

Answers

Ultraviolet rays are Electromagnetic waves that have higher frequencies than visible light, so they carry more energy.

What are Ultraviolet rays?Johann Wilhelm Ritter, a German physicist, first noticed that paper soaked in silver chloride browned more quickly when exposed to Ultraviolet rays than when it was exposed to violet light itself in 1801.For the most part, humans cannot see ultraviolet rays. The cornea filters out shorter wavelengths, while the lens of the human eye primarily inhibits radiation in the 300–400 nm range. Additionally, UV color receptor adaptations are not present in humans. The retina's photoreceptors are sensitive to near-UV, though, and those without lenses (a condition known as aphakia) see near-UV as whitish-blue or whitish-violet.The body produces vitamin D, which is necessary for life when exposed to UV light, more especially UVB. UV rays are necessary for humans to maintain proper vitamin levels.

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1. A large ball was let go on a hill and started rolling down with a constant acceleration of 4.2 m/s². What was the velocity of the ball after 12 s?​

Answers

Answer:

The velocity after 12s is 50.4m/s.

Explanation:

In acceleration formula make velocity the subject.

acceleration(a) = velocity(v)÷time(t)

velocity (v) = acceleration(a)×time(t)

V = 4.2m/×12s

V = 50.4m/s

Therefore the velocity after 12s is 50.4m/s.

Linear Velocity What is the linear velocity in cm>min for any edge point of a 12-cm-diameter CD (compact disc) spinning at 10,350 rev>min?

Answers

3,89,988 cm/min is the linear velocity

Given,

Diameter of CD = 12 cm

So, Radius of CD = 6 cm

CD is spinning at 10350 rev/min

Firstly , convert rev/min into rad/min

1 rev = 2π radians

10350 rev/min = 10350 × 2π

                        = 64998 rad/min

Formula used,

[tex]v=rw[/tex] where,

[tex]v[/tex] is the Linear velocity

[tex]r[/tex] is the radius

[tex]w[/tex] is the angular velocity

[tex]v[/tex] = 6 cm × 64998rad/min

  = 3,89,988 cm/min

Thus, linear velocity for any edge point of a 12-cm-diameter CD (compact disc) spinning at 10,350 rev/min is 389988 cm/min.

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If the distance between two charged particles is increased 2.69 times, the ratio of new to old electric force is _______ times the old value. (Round your answer to two decimal places).

Answers

Answer:

F = K Q1 Q2 / R^2       force between 2 charged partices

F2 / F1 = (R1 / R2)^2 = (1 / 2.69)^2 = .139

F2 = .139 F1

what provides the centiperal force to a satellite revolving around the earth?​

Answers

Answer:

the gravitational force

If the current through a resistor is tripled, how does the power dissipated by
the resistor change?

Answers

If the current that is circuit is tripled,  the power is increased by a factor of 9. Option D

What is power?

The term power refers to the rate of doing work. Now if we have to obtain the work done by the use of the formula; P = I^2R

Now if the current that is circuit is tripled, the power is now obtained by;

P = (3I)^2R = 9I^2R hence the power is increased by a factor of 9.

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A light bulb receives 100 J of energy electrically. It transfers 30 J of energy to the surroundings by heat. What is the efficiency of the light bulb?

Answers

Answer:

The efficiency of the light bulb is 30%.

Explanation:

Efficiency = output/input × 100%

Data

Energy input = 100J

Energy output = 30J

Efficiency = ?

Efficiency = Energy output/Energy input × 100%

Efficiency = 30J/100J × 100%

Efficiency = 0.3 × 100%

Efficiency = 30%

Therefore the efficiency of the light bulb is 30%.

g Three projectiles are launched from the same level on flat ground. Each reaches the same maximum height before returning to the ground, but projectile 3 (in blue) has the largest range, followed by projectile 2 (in green). Projectile 1 has the smallest range (in red). Rank the three from largest to smallest according to:

Answers

the correct answer would be projected largest range because projectile has the smallest one

Assume the first dot for animal A represents t = 0. At which time does animal B overtake animal A?

Answers

The time in which the animal B overtake animal A according to the motion map is at 2 seconds.

What is a Motion map?

This is referred to as one-dimensional plots built off of a position line and depicts velocity and acceleration.

The time in which Animal B is ahead of animal A is at 2 seconds which therefore makes it the most appropriate choice.

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A wire is joined to points X and Y in the circuit diagram shown. A diagram of a circuit with a power source on the left. Directly above the power source is a dot labeled X and then a circle with an X in it. The circuit then splits with one path straight back to the power source and the other path has 3 circles with X in them labeled 2, 3, and 4 respectively. There is a point labeled Y between circles 2 and 3.A diagram of a circuit with a power source on the left. Directly above the power source is a dot labeled X and then a circle with an X in it. After the x are 4 different circles on the circuit with Xs in them labeled 1, 2, 3, and 4 respectively. There is a point labeled Y in between circles 2 and 3. There is a branch of the circuit from X to Y. How does the circuit change when the wire is added?
A closed circuit occurs and makes all bulbs turn off.
An open circuit occurs and makes all bulbs turn off.
A short circuit occurs and makes bulbs 3 and 4 turn off but keeps bulbs 1 and 2 lit.
A short circuit occurs and makes bulbs 1 and 2 turn off but keeps bulbs 3 and 4 lit.

Answers

The circuit change when the wire is added will see a short circuit occur and makes bulbs 1 and 2 turn off but keeps bulbs 3 and 4 lit. Option D. This is further explained below.

How does the circuit change when the wire is added?

Generally, Electronic circuits consist of a series of interconnected parts that form a closed loop through which electricity may flow.

In conclusion, If two wires are linked together, a short circuit will develop, cutting power to bulbs 1 and 2. But there is no impact on bulbs 3 and 4. There is no problem with bulbs 3 and 4.

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A 43-kg child sits in a massless swing. With what horizontal force must the seat be pulled so that the ropes form an angle of 35o with respect to the vertical? Group of answer choices 300 N 320 N 340 N 360 N

Answers

The horizontal force that the seat must be pulled so that the ropes form an angle of 35o with respect to the vertical is 345.2 N.

Horizontal force to be applied

The horizontal force that the seat must be pulled so that the ropes form an angle of 35o with respect to the vertical is calculated as;

F = Wcosθ

where;

W is weight of the childθ is angle of inclination of the rope

F = (43 x 9.8) x cos(35)

F = 345.2 N

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An object on Earth weighs 150 N. What is its mass?
Group of answer choices

15 g

150 kg

15 kg

150 g

Answers

Answer:

[tex] \tt \: mass \: = \frac{weight}{acceleration \: due \: to \: gravity} [/tex]

[tex] \longrightarrow \tt \: \frac{150}{10} [/tex]

[tex] \longrightarrow \boxed{ \tt{15 \: kg}}[/tex]

Our final answer is 15 kg .

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. A microwave oven operates at 2.4GHz with an intensity inside the oven of 2500 W/m^2. What are the amplitudes of the oscillating electric and magnetic fields

Answers

Answer: A microwave oven operates at 2.4GHz with an intensity inside the oven of 2500 W/m^2. Then, the amplitudes of the oscillating electric and magnetic fields are, [tex]B_0=4.57*10^{-6} T and E_0=1.37*10^{3} V/m[/tex]

Explanation: To find the correct answer, we have to know more about the EM Waves.

What are EM waves?Electromagnetic waves can be defined as the waves, that can interact with the matter and are created as a result of vibrations of electric and magnetic fields.Maxwell theoretically predicted the existence of electromagnetic waves.A time varying magnetic field is a source of electric field.Similarly, an oscillating electric field gives rise to an oscillating magnetic field.The amplitudes of electric and magnetic fields can relate as,

                          [tex]E_0=cB_0[/tex]

The expression for intensity of electromagnetic waves in terms of amplitude of magnetic field can be written as,

                        [tex]I=\frac{1}{2u_0} cB_0^{2}[/tex]

How to solve the problem?From the above expression of intensity, we can find the expression for amplitude of magnetic field as,

                          [tex]B_0=\sqrt{\frac{2u_0I}{c} }=\sqrt{\frac{2*4*3.14*10^{-7}*2500 }{3*10^{8} } } =4.57*10^{-6} T[/tex]

Thus, from the amplitude of magnetic field, we get, the amplitude of electric field as,

                              [tex]E_0=cB_0=3*10^{8} *4.57*10^{-6} =1371 V/m[/tex]

Thus, from the above calculations, we get the amplitudes of the oscillating electric and magnetic fields are, [tex]B_0=4.57*10^{-6} T and E_0=1.37*10^{3} V/m[/tex]

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All objects fall at the same rate, what is the acceleration of the force of gravity?

Answers

Answer:

9.8 m/s

Explanation:

If these objects are in free fall, meaning that their downward movement is only due to the force of gravity, then acceleration due to gravity is about 9.8 metres per second per second.

a car travelling at 5m/s is brought to rest in a distance of 20m.Find it's decelaration and time taken.​

Answers

Answer:

time taken= 8s

deceleration = -0.625ms^-2

Explanation:

s = 1/2(u+v)t (linear motion formula)

20 = 1/2 ( 5+0 ) t

t=time taken, find t

t= 8s

a= (v-u) / t

a= (0-5) / 8s

= -0.625 ms^-2

If oxygen, which has a electronegativity of 3.5, bonds with hydrogen, which has an electronegativity of 2.1, the bond between the two atoms will be classified as a polar____ bond

Answers

Given the electronegativity of O is 3.5 and H is 2.1,  the bond between the two atoms will be classified as a polar covalent bond.

How are bonds classified?

According to the difference in electronegativity (ΔEN).

If ΔEN ≤ 0.4, the bond is nonpolar covalent.If 0.4 < ΔEN ≤ 1.9, the bond is polar covalent.If ΔEN > 1.9, the bond is ionic.

Oxygen has an electronegativity of 3.5 and hydrogen of 2.1. The difference in electronegativity is:

ΔEN = EN(O) - EN(H) = 3.5 - 2.1 = 1.4

Given the electronegativity of O is 3.5 and H is 2.1,  the bond between the two atoms will be classified as a polar covalent bond.

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A toy car starts from the rest and accelerates at 1.50m/s2 [E] for 2.25s. What is the final velocity, of the car

Answers

3.375m/s is the final velocity of the car.

How do you find final velocity?

The final velocity depends on how large the acceleration is and the distance over which it acts.

Initial velocity of an object, you can multiply the acceleration due to a force by the time the force is applied and add it to the initial velocity to get the final velocity.

According to the question,

A toy car starts from the rest and accelerates

So the acceleration = 1.50m/s²

Time =  2.25s

[tex]x=x_{0} + vt[/tex]

[tex]x = 0 + ( 1.50m/s^2*2.25s)[/tex]

[tex]x = 3.375m/s[/tex]

The final velocity, of the car is 3.375 m/s.

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Question 17
The driver of a car traveling along a straight road with a
speed of 72KM ph observes a signboard which give the
speed limit to be 54KM ph. The signboard is 70m ahead
when the driver applies the brakes, calculate the
acceleration of the car which will cause the car to pass the
signboard at the stated speed limit?

Answers

So, the acceleration of the car is -1.25 m/s². In other word, the car is also decelerating by 1.25 m/s².

Introduction

Hi ! I will help you to discuss about "deceleration in a straight line movement". Please note in advance that deceleration is acceleration which has a negative value. When an object decelerates, the object will continue to move until it reaches a certain speed (which is less than before) or until it stops. The higher the deceleration value, an object that is moving will stop faster and cover a shorter distance.

Formula Used

In this opportunity, I will give you the following equation to express the relationship between final velocity and initial velocity, acceleration, and distance.

[tex] \boxed{\sf{\bold{(v_t)^2= (v_0)^2 + 2 \times a \times s}}}[/tex]

With the following condition:

[tex] \sf{v_t} [/tex] = final velocity of an object (m/s)[tex] \sf{v_0} [/tex] = initial velocity of an object (m/s)a = acceleration that happen (m/s²)s = the shift or distance of the object (m)

Problem Solving

We know that:

[tex] \sf{v_0} [/tex] = initial velocity of an object = 72 km/h = 20 m/s[tex] \sf{v_t} [/tex] = final velocity of an object = 54 km/h = 15 m/ss = the shift or distance of the object = 70 m

Note :

1 m/s = 3.6 km/h. So 10 m/s = 36 km/h

What was asked ?

a = acceleration that happen = ... m/s²

Step by step :

[tex] \sf{(v_t)^2 = (v_0)^2 + 2 \times a \times s} [/tex]

[tex] \sf{15^2 = 20^2 + 2 \times a \times 70} [/tex]

[tex] \sf{225 = 400 + 140 \times a} [/tex]

[tex] \sf{140 a = -175} [/tex]

[tex] \sf{a = \frac{-175}{140}} [/tex]

[tex] \boxed{\sf{\bold{a = -1.25 \: m/s^2}}} [/tex]

Conclusion

Here, we see that the acceleration is -1.25 m/s². In other words, the car is also decelerating by 1.25 m/s².

which process receives geo thermal energy naturally​

Answers

Well what causes the energy is from solar and chemical
Hot water can be released through geysers, hot springs, steam vents, underwater hydrothermal vents, and mud pots.

With a mass of 111.1 kg, is moving with a velocity of 3.000 m/s to the right. Mass is initially at rest and has a mass of 222.2 kg. After the elastic collision, bounces off with a velocity of 1.000 m/s to the left. Calculate the velocity of after the collision.

Answers

Let us assume the positive \hat{x} direction is towards the right.

During any collision, the total momentum is conserved.

That means, the total momentum before the collision is the same as the total momentum after the collision.

p before = P after

Given,

Mass 1, m_1 = 111.1kg

Mass 2, m_2 = 222.2kg

Initial Velocity of Mass 1, 1,1 3.00.î m/s

Initial Velocity of Mass 2, \overrightarrow v_{2,i} =0

Velocity of Mass 1 after collision, \overrightarrow v_{1,f} =-1.000\hat{x}\hspace{0.1cm}m/s

The total Momentum of the system before the collision is,

\overrightarrow p_{before} =m_1\overrightarrow v_{1,i} + m_2\overrightarrow v_{2,i}

=> \overrightarrow p_{before} =(111.1)(3.00\hat{x}) + 0

=> \overrightarrow p_{before} =333.3\hspace{0.1cm}\hat{x}\hspace{0.1cm}kgm/s

The total Momentum of the system after the collision is,

\overrightarrow p_{after} =m_1\overrightarrow v_{1,f} + m_2\overrightarrow v_{2,f}

=> \overrightarrow p_{after} =(111.1)(-1.000\hat{x}) + (222.2)\overrightarrow v_{2,f}

=> \overrightarrow p_{after} =(-111.1\hat{x}) + (222.2)\overrightarrow v_{2,f}

We know the total momentum before the collision is the same as the total momentum after the collision.

p before = P after

=>333.3\hat{x} =(-111.1\hat{x}) + (222.2)\overrightarrow v_{2,f}

=>(-111.1\hat{x}) + (222.2)\overrightarrow v_{2,f} = 333.3\hat{x}

=> (222.2)\overrightarrow v_{2,f} = 333.3\hat{x} + 111.1\hat{x}

=> (222.2)\overrightarrow v_{2,f} = 444.4\hat{x}

=> \overrightarrow v_{2,f} = \frac{444.4}{222.2}\hspace{0.1cm}\hat{x}\hspace{0.1cm}m/s

=> \overrightarrow v_{2,f} = 2.00\hspace{0.1cm}\hat{x}\hspace{0.1cm}m/s

Therefore the velocity of m_2 after collision is v_{2,f} = 2.00\hspace{0.1cm}m/s going to the right

Please check the attached file for a brief answer.

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which two forms of energy do burning substances produce

Answers

Answer:thermal (heat) energy and radiant (light) energy.

Explanation:

Answer:

Answer: We use the chemical energy in fuels by burning them and transforming them into other types of energy: thermal energy, as when we burn fuel for heat; and kinetic energy, as when we burn gasoline to power our car's motion

Explanation:

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African fish eagles are large raptors that have a wide range across sub-Saharan Africa. Which of these organisms do you think would have a niche similar to that of an African fish eagle?A- American bald eagle B- European blue jayC- White-tailed deerD- Mountain lion Whats the length of three pipes, when combined they equal 72m, how do I find the answer 1. Describe theoverall changes inmatter that occurduring the light-independentreactions. What doesthe plant start withand what does it endwith? What is thesource of energy thatpowers this change? How did the selective service act result in the AEF arriving in France Which of the following describes a difference between NAFTA and the Kyoto Protocol? A. NAFTA deals with trade policy, while the Kyoto Protocol deals with the environment. B. NAFTA is a global organization, while the Kyoto Protocol includes only Asian states. C. NAFTA allows members to pass tariffs, while the Kyoto Protocol promotes free trade. D. NAFTA uses embargoes to further its political goals, while the Kyoto Protocol does not. If you work for a company and have a 401(k) retirement account, the account contains money you contributed to your retirement and money contributed by your employer. When you retire, which of the following will these payments be?A. Welfare paymentsB. PensionC. Transfer paymentsD. None of the above Find y. Help me please thank u:) The Serbian/Yugoslav leader who presided over the attempts to prevent Kosovo from seceding from Yugoslavia was: an airplane flies 3300 miles with the wind in 3 hours 18 minutes. it takes 4 hours and 24 mins to make the return flight against the same wind. find the speed of the airplane and the speed of the wind. a = 23 ft.;c = 4 ft.A = 83 sq. ft.TrueFalse Question 31 of 34Which situation shows a nonrenewable resource in use? Leonard has built a crate for his car. The crate measures (x+5) ft by (x+1) fr by (2x+3) ft. Write an expression that represents the volume in the crate in cubic feet The following formula gives the total surface area S of a cylinder with radius r and height h.S=2r(r+h)Find the total surface area of a cylinder with radius 4 and height 8. Enter an exact answer in terms of . Do not include S= in your answer. Over the past half century in the United States, ethnic and racial diversity have been ________. A newly discovered species of bird is found to only lay a single egg and both parents are necessary to raise the chick to adulthood. What would be the most successful mating strategy for this species 4 . A negative charge -0.450 exerts an upward 0.150N force on an unknown charge 0.250m directly below it . ( a ) what is the unknown charge ( magnitude and sign ) ? ( b ) what are the magnitude and direction of the force that the unknown charge exert charge exerts on the -0.450 charge ? The point-slope form of the equation of a line that passes through points (8, 4) and (0, 2) is y - 4 = 1/4 (x-8). WhatIS the slope-intercept form of the equation for this line?O y= 1/4x -12O y= 1/4x-4O y=1/4x+2O y= 1/4x+6 trigonometry questionworth 100 points! desperately need help -6-5A. 2C. 332A14-3-2-10-1-21B-3CEDF1 2 3In the similaritytransformation of AABCto ADFE, AABC was dilated bya scale factor of [? ], reflectedacross the [ ], and movedthrough the translaton [ ].B. 1/2D. 1/3 2. David determines that 3 sqrt 2 cis(7pi/4) = -3+3i. When he considers the graphical representation of these numbers, he knows he made an error. Clearly explain in complete sentences what David observed, and where David made his mistake. State the correct rectangular equivalence of 3 sqrt 2 cis(7pi/4).