What 2 factors affect the impulse on an object in a collision?

Answers

Answer 1
force an friction?

i looked it up an thats all i can find

Related Questions

The temp of the metal in a running car engine is 388 K. Find this temp in Celsius.

Answers

Answer:

115°c

Explanation:

°c=k-273

388-273=115

A box is being pulled across a horizontal surface by a 20 N force to the right.
a. If the box moves at a constant velocity, what do you know about the forces acting on the object?
b. If the box moves at a constant velocity, how much force opposes the motion of the box?
c. If the box experiences a force of 15 N to the left, along with the 20 N force acting to the right, what is the net force on the box?

Answers

A) If the box moves at a constant velocity, what we know about the forces acting on the object is; the sum of the forces acting on the object must be zero.

B) If the box moves at a constant velocity, the force that opposes the motion of the box is; Frictional Force of -20 N

C) If the box experiences a force of 15 N to the left, along with the 20 N force acting to the right, the net force on the box is; F_net = 5 N

We are told that a box is being pulled across a horizontal surface by a 20N force to the right.

A) Newton's first law of motion states that an object will remain at rest or continue in motion unless an external force acts on it. This means that any object/body moving with constant velocity will have no net external force acting on it. Thus, the sum of the forces acting on the object must be zero.

B) Since we are told that the box is moving at a constant velocity and that the sum of all forces must be zero. Then the force that will oppose the applied force of 20N to the right will be an equal but opposite force .

        In this case the opposing force will have to be the frictional force which will be -20 N to balance out the applied force.

C) We are told that a force of 15 N is acting to the left along with the 20 N force.

Thus, the net force will be;

F_net = 20 - 15

F_net = 5 N

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A 50 Kg football player is standing still when he experiences an inelastic collision with a 150 Kg football player who is traveling at 10 m/s. What is the velocity of the player immediately after the collision?

Answers

Answer:

V = 7.5 m/s

Explanation:

Given that,

Mass of player 1, m₁ = 50 kg

Mass of player 2, m₂ = 150 kg

50 kg player stands still and 150 kg player is traveling at 10 m/s

We need to find the velocity of the player immediately after the collision. As the inelastic collision occurs. The linear momentum will remain conserved. After the collision, let they move with a constant velocity say V.So,

[tex]m_1u_1+m_2u_2=(m_1+m_2)V\\\\V=\dfrac{m_1u_1+m_2u_2}{(m_1+m_2)}\\\\=\dfrac{150\times 10}{(50+150)}\\\\=7.5\ m/s[/tex]

So, the velocity of the player immediately after the collision is 7.5 m/s.


Atoms of two different elements must have different

A. Electrical charges
B. Number of neutrons
C. Atomic numbers
D. Energy levels

Answers

Explanation:

C. Atomic numbers....

Answer:

atomic numbers

Explanation:

In order for two atoms to be different, they have to have a different number of protons. Protons are represented by the atomic number. Thus, atoms of two DIFFERENT elements must have different atomic numbers.

I took the test and got 100%

Hope this helps!

30 POINTS!!!! If you increase the frequency, what happens to the velocity of the wave?

In answering this question, describe how you determined the velocity as well as the result you arrived at. Then, provide a scientific explanation for this result, based on your knowledge of waves.

Answers

Answer:

As frequency increases, wavelength decreases. Frequency and wavelength are inversely proportional. This basically means that when the wavelength is increased, the frequency decreases and vice versa.

Explanation:

A wave's velocity is independent of its intensity and equal to the product of its wavelength and frequency (number of vibrations per second) so, velocity remains constant if you increase the frequency.

What is Frequency?

Frequency is defined as the no of waves that are passing from the point in respect to a given time. Frequency can be measured in Hertz. Humans, whose capacity to hear is normal, can hear between the frequency of 20 Hertz to 20000 Hertz.

In mathematical form, the frequency is the factor of one divided by the time period. The number of cycles or vibrations a body in periodic motion makes in one unit of time.

Wavelength reduces as frequency rises. The relationship between frequency and wavelength is inverse. In essence, this means that the frequency reduces as the wavelength increases and vice versa.

Frequency ∝ 1 / Wavelength

Velocity = Frequency  ×  Wavelength

Thus, it remains constant.

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If you increase the frequency what happens to the distance between the waves (wavelength)?



The size of the waves stays the same


the distance increases (longer wavelength)


There is no way to tell.


the distance decreases (shorter wavelength)

Answers

Answer:

C)the distance decreases Shorter wavelength

Step by step Explanation:

which option lists materials in order by their ability to allow the flow of electrons, from most easily to least easily?
A. Conductor, semiconductor, insulator
B. Semiconductor, insulator, conductor
C. Insulator, semiconductor, conductor
D. Semiconductor, conductor, insulator ​

Help me pls!

Answers

Answer: Conductor, semiconductor, insulator

Explanation:

Just did the quiz

The correct option is option A.

The descending order in which electrons flow easily is:

Conductor, semiconductor, insulator

Conductivity and flow of electrons:

The correct order for materials by their ability to allow the flow of electrons, from most easily to least easily is Conductor, semiconductor, insulator.

Conductors are generally metals, they have plenty of free electrons due to which the electron flow is easy. Also, the conduction band and valance band in a conductor overlap, so they can conduct at room temperature.

In the case of semiconductors, the band gap between the conduction band and valance band is almost 1eV, so a little energy is enough to make the flow of electrons possible

Whereas, in insulators, the band gap is quite high and electrons can not jump from the conduction band to the valence band due to which the flow of electrons is not possible.

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Kayla is measuring how long it takes a ball to roll down a hill. The ball has a
starting velocity of 2.6 m/s. The ball rolls down the hill for 5.5 seconds, and
when it reaches the bottom, it has a velocity of 8.0 m/s. How far did the ball
roll during this time frame?

A) 44 meters

B) 14 meters

C) 29 meters

D) 58 meters

Answers

The answer would be A. 44 meters

Can someone help please I will give brainliest

Answers

Pretty sure it’s b but don’t hate on me

Sharon is driving on a straight road. She is driving north, and her speed is
decreasing. If north is the positive direction, which of the following
statements is accurate?

A) Her velocity is positive, and her acceleration is negative.

B) Her velocity is negative, and
her acceleration is negative.

C) Her velocity is negative, and her acceleration is positive.

D) Her velocity is positive, and her acceleration is positive.

Plzz help

Answers

Answer:

b

Explanation:

b is the correct answer

Answer:

b. Her velocity is positive, and her acceleration is negative.

Explanation:

A 55 kg boy running at 2.0 m/s jumps onto a 2.0 kg skateboard. Calculate the final velocity of the boy and the skateboard.​

Answers

Answer:

The final velocity of the boy and the skateboard is 1.93 m/s.    

Explanation:

We can find the final velocity of the boy and the skateboard by conservation of linear momentum:

[tex] P_{1} = P_{2} [/tex]

[tex] m_{b}v_{i_{b}} + m_{s}v_{i_{s}} = m_{b}v_{f_{b}} + m_{s}v_{f_{s}} [/tex]  (1)

Where:

[tex]m_{b}[/tex]: is the boy's mass = 55 kg

[tex]m_{s}[/tex]: is the skateboard's mass = 2.0 kg

[tex]v_{i_{b}}[/tex]: is the initial speed of the boy = 2.0 m/s

[tex]v_{i_{s}}[/tex]: is the initial speed of the skateboard = 0

[tex]v_{f_{b}}[/tex]: is the final speed of the boy =?

[tex]v_{f_{s}}[/tex]: is the final speed of the skateboard =?

Since the boy and the skateboard will have the same final velocity by entering the above values into equation (1) we have:

[tex] 55 kg*2.0 m/s + 0 = v_{f}(55 kg + 2.0 kg) [/tex]

[tex] v_{f} = 1.93 m/s [/tex]

Therefore, the final velocity of the boy and the skateboard is 1.93 m/s.    

I hope it helps you!                                

The final velocity of the boy and the skateboard is 1.93m/s

According to the law of conservation of momentum, the momentum of the bodies before the collision is equal to the momentum of the bodies after the collision.

Mathematically, [tex]m_1u_1+m_2u_2=(m_1+m_2)v[/tex]

[tex]m_1 \ and \ m_2[/tex] are the masses of the object

[tex]u_1 \ and \ u_2[/tex] are the velocities of the object

v is the final velocity

Given the following parameters

m₁ = 55kg

u₁ = 2.0m/s

m₂ = 2.0kg

u₂ = 0m/s

Required

Final velocity "v"

Substitute the given parameters into the formula to have:

[tex]55(2)+2(0)=(55+2)v\\110=57v\\v=\frac{110}{57}\\v= 1.93m/s[/tex]

Hence the final velocity of the boy and the skateboard is 1.93m/s

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What is power??????????

Answers

D.) The energy needed to create work.

true or false? drag forces decrease when the density of a fluid increases

Answers

Answer:

Drag increases with the density of the fluid (ρ). More density means more mass, which means more inertia, which means more resistance to getting out of the way. The two quantities are directly proportional.

Please help

Answers

Answer; 1 wavelength has a longer wavelength and lower frequency, 2 wavelength has a high frequency and short wavelength

A box at rest is in a state of equilibrium half way up on a ramp. The ramp has an incline of 42° . What is the force of static friction acting on the box if box has a gravitational force of 112.1 N ?

Answers

Answer:

Explanation:

The force of static friction acting on the box is the frictional force;

Frictional force Ff = Wsin theta (force acting along the ramp)

W is the gravitational force known as the weight

Ff = 112.1sin42°

Ff = 112.1(0.6691)

Ff = 75.00N

Hence he force of static friction acting on the box  if box has a gravitational force of 112.1 N id 75.00N

Answer:

75N i did test

Explanation:

What is thermodynamics?
the movement of energy
the classification of energy
the way energy changes
the movement of heat

Answers

Answer:

The movement of energy

Explanation:

Answer:

the movement of energy

The density of an object is dependent upon the object’s mass and ---

Answers

Answer:Volume

Explanation:

Density = mass/ Volume

Answer:

Volume

Explanation:

Who else got stuck on a question and is NOT ready for test return at 2? its 1:58 AAAAAAA​

Answers

Good luckkkk hope you do well

You want to push a 71-kg box up a 16° ramp. The coefficient of kinetic friction between the ramp and the box is 0.23. With what magnitude force parallel to the ramp should you push on the box so that it moves up the ramp at a constant speed?

Answers

Answer:

345.60N

Explanation:

The magnitude of the force parallel to the ramp that will push the box up the ramp are the frictional force(Ff) and the moving force Fm

Total force = Ff + Fm

Ff = ηR

Ff = ηmgcosθ

Fm = Wsinθ

Fm = mgsinθ

Total force = ηmgcosθ + mgsinθ

Total force = mg(ηcosθ + sinθ)

Given

mass m = 71kg

acceleration due to gravity g = 9.8m/s²

angle of inclination θ = 16°

coefficient of friction η = 0.23

Substitute into the formula;

Total force = 71(9.8)(0.23cos16 + sin16)

Total force = 695.8(0.2211+0.2756)

Total force = 695.8(0.4967)

Total force = 345.60N

Hence the magnitude force parallel to the ramp that you should push on the box so that it moves up the ramp at a constant speed is 345.60N

An electric energy distributor supplies each household 220
volts of voltage and 60 A of current. Applying your knowledge on Ohm's Law, in what way your appliances be used at home to maintain a safe amount of current?​

Answers

Answer:

Hence appliance but be connected to a 3.67 ohms load to maintain a safe amount of the current

Explanation:

According to Ohm's law, V = IR

V is the potential difference = 220volts

I is the current = 60 A

R is the resistance (Load)

Calculating the load R

R = V/I

R = 220/60

R = 3.67 ohms

Hence appliance but be connected to a 3.67 ohms load to maintain a safe amount of the current

how do you know the pole on the left is the south pole and the pole on the right is the north pole?

Answers

Answer:

Left is deciamled to the right [tex]x_{123}[/tex]

Explanation:

A 2000 kg car is moving at 1.5 m/s. What is its kinetic energy?*
A. 0J
B. 3000J
C. 1500 J
D. 4500 J
E. 2250 J

Answers

Answer is B 3000 J hope I could help
Its E,
K.E = 1/2mv^2
K.E = 1/2(2000)(1.5)^2
K.E = 2250 J

2. The purpose of using ice on an injured area is... *
to increase blood flow.
O to hydrate an injury.
O to reduce blood flow.
O to dilate blood vessels.

Answers

B - reduces blood flow,

The main reason to use ice stops swelling and numbs the pain,
It does this by reducing blood flow to the area

What makes the yardstick test a direct measurement of reaction time?
A.
The further the yardstick falls, the slower the reaction time.
B.
Yardsticks have numerical markings for length.
C.
Yardsticks are designed to measure reaction time.
D.
all of the above


Please select the best answer from the choices provided.

A
B
C
D

Answers

Answer:

A. the further the yardsticks falls, the slower the reaction time.

Answer:

The further the yardstick falls, the slower the reaction time.

Explanation:

its A

If you can run at a speed of 30 miles per hour and run a distance of 15
miles, how long did it take you to run that distance?

Answers

Answer:

30 mins

Explanation:

speee=distance/time

300m/h=15m/time

time=15miles/300miles/hous=1/2 hours=30 mins

Answer:

30 minutes.

Explanation:

If it takes you an hour to run 30 miles but you only need to run 15 miles then you split that hour in half, which results in half an hour or 30 minutes.

Chemical reactions occur due to sharing or transferring of blank. Please help ASAP!!!!

Answers

I think the answer would be Electrons. The process of chemical reactions transfer or share electrons that creates an attraction which hold the atoms together.

Answer: valence electrons?

Explanation:

A car decelerates uniformly from 54 m/s to 38 m/s in 8.0 seconds. How far does it travel dunng this time?

Answers

Answer:

368m

Explanation:

dx=vt

54+38/2=46

46*8=368m

100 points if u help me and get it right this needs to be done in 3 min hurry to get ur 100 points

Calculate the kinetic energy of a 50 kg cart moving at a speed of 6.9 m/s.

Answers

Answer:

35

Explanation:

c7z ya boiiiiiiiiiiiiiiiiii

2.45kJ.
(I think it is)

A mover uses a pulley to lift a 2500N piano up to a second story balcony. The mover pauses to wipe sweat from his forehead while holding the rope tight in one hand. Since the piano is not moving at this time, what is the tension force in the rope while the piano is dangling still in the air?

Answers

Answer:

2500 N

Explanation:

Tension force may be defined as the force which is transmitted along a cable, rope, or through a string which is stretchable and is puled tight by the forces acting from the opposite sides. It is directed along the length of the string or the rope.

In the context, a pulley string holds a 2500 N piano that is used to lift it to second story balcony. When the piano is held stationary by the mover, the tension force acting on the rope is the weight force or the gravitational force that acts on the piano which is 2500 N. The tension force balances the the weight force of the piano when it is not moving.

The sixth grade teachers are planning a field trip. They want to divide the 192 students evenly on the four buses. How many students will ride each bus?

Answers

Answer:

48 students will ride on each bus.

Explanation:

192 students divided by 4 busses comes out to 48 students per bus.

Basically: 192/4=48

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