Jason is pulling a box across the roompulling with a force of 16 newtons and his arm is making a 68 anglet with the horizontal what is the horizontal component of the he is pulling with?

The exact point of an object measured from all its edge center of mas.

What is center of mass?

the center of mass of a distribute of mass in space is the unique point where the weighted relatively position of the devided mass sums to 0. This is a point to which a force of  may be applied to cause of a  linear acceleration it without an angular acceleration.

Most of the time (not everytime)the centre of mass of an object lies within the object itself.

Eg-the center of mass of a ball in middle of a ball and the centre of mass of a copy is middle of a copy.

To know more about center of mass click -

https://brainly.com/question/28134510

#SPJ9

Given:

The charge on the capacitor is Q = 0.617 nC

The distance between plates is d =1.784 mm

The area is

To find the electric field strength.

Explanation:

The electric field strength can be calculated by the formula

The constant is

On substituting the values, the electric field strength will be

If the earth has a radius R of about  6.37 × 10⁶ m, then the power received by the earth would be 2.722 × 10¹⁰ watts.

The rate of doing work is known as power. The Si unit of power is the watt.

Power =work/time

As given in the problem Earth has a radius R of about 6.37 × 10⁶ m.

Area of the earth assuming it is a circle = 3.14 × 6.37 × 10⁶

                                                                 = 2 × 10⁷ meter²

The power received by the earth = 2 × 10⁷ × 1361

                                                       = 2.722 × 10¹⁰ watts

Thus, the power received by the earth would be 2.722 × 10¹⁰ watts.

To learn more about power from here, refer to the link ;

brainly.com/question/3854047

#SPJ1

Take into account that the gravitational force implies an acceleration on the skydivers when they go downward. While they go down the drag force, due to the air, decelerates the motion of the skydiver. The drag force increases in a constant way (becasue the drag force depends on the speed of the skydiver, and the speed, due to the acceleration produced by the gravity, increases), until it equals the gravitational force and the speed of the skydiver becomes constant.

Hence, the two forces are the gravitational force and the drag force

ANSWER:

-3.73 m/s^2

STEP-BY-STEP EXPLANATION:

Acceleration is the rate of change of velocity and we can calculate it as follows:

Replacing:

The baseball's player's deceleration is 3.73 m/s^2

ANSWER

C. The total (PE + KE) before an event is equal to the total (PE + KE) after the event.

EXPLANATION

We want to identify the correct option.

The law of conservation of energy is a law that applies only to closed systems and it states that:

In other words, energy cannot be created nor destroyed.

This implies that the total energy (sum of potential and kinetic energy) before an event occurs must be equal to the total energy after the event has occurred.

Therefore, the correct option is option C.

Answer:

a) She get detention for being late again

Explanation:

First, we need to identify how much time does she take on each hallway.

With the distance and the speed, we can calculate the time as:

t = distance/speed

So, for each hallway, we get:

First hallway:

distance = 35 m

speed = 3.5 m/s

time = 35/3.5 = 10s

Second Hallway

distance = 48 m

speed = 1.2 m/s

time = 40s

Third Hallway

distance = 60 m

speed = 5 m/s

time = 60/5 = 12 s

Therefore, the total time that she takes was

10s + 40s + 12s = 62s

Since she takes more than 60 seconds, she will be late again.

Finally, we know that she takes 10s to run a distance of 35m, then another 40s to run a distance of 48 m, and another 12s to run a distance of 60 m. Therefore, the distance vs. time graph for this situation is

If one train travels at constant speed 60 miles/h and other train at 80 miles/h south and west respectively then after 3 hours the two trains are exactly 300 miles apart.

Speed is a scalar quantity that indicates how quickly an object is moving, regardless of its direction.

The formulas below can be used to determine an object's speed:

S = d/t

where 

d is the distance an object travels and 

where 

The metre per second (m/s) is the unit of speed in the SI system.

As the train are traveling south and west the angle of direction between them is 90° hence we can use Pythagoras theorem to find displacement

c = √(a² + b²)

displacement of 1 hour = √(60 ² + 80²)

                                      = √10000

                                      = 100 miles

time taken 100 miles  is = 1 hour

Then time taken for displacement of 300 miles  = 3 × 1 hour

                                                                           = 3 hours

Thus, After 3 hours the two trains are exactly 300 miles apart.

Learn more about speed

https://brainly.com/question/13943409

#SPJ10

Answer:

Explanation:

A step down transformer decreases the incoming voltage. It converts high voltage and and low current from the primary side to low voltage and high current. Thus, the correct option is

Voltage out is smaller than voltage in.

The magnitude of your horizontal acceleration as you begin to slow is 7.35m/s².

Applying work-energy theorem,

Total work done on the body by all the forces = change in kinetic energy.

So, here,

Work done by friction = ∆KE

-uMgd = 1/2M(v²-u²)

u is the coefficient of friction,

M is the mass of the car,

g is the acceleration due to gravity,

v is the final velocity of car,

u is the final velocity of car,

d is the horizontal distance moved by car.

(-0.75)(1800)(9.8)d = -1/2(1800)(21)²

d= 30 meters.

Applying Equation of motion,

V²-U²=2ad

Where a is the horizontal acceleration,

-(21×21) = 2(30)a

a = 7.35m/s².

To know more about work-energy theorem, visit,

https://brainly.com/question/16995910

#SPJ1

Habituation is a term does this situation exemplify.

In this case, the professor is talking about a situation where a person has become used to a particular stimulus. as a result, the rate at which the stimulus would be registering to the person would be much lesser as compared to someone who is fairly new in being exposed to the stimulus.

This process is called habituation. Sensitization is the situation where a person becomes extremely sensitive to even lower intensity of the stimulus.

Habituation is a form of non-associative studying in which an innate reaction to a stimulus decreases after repeated or prolonged presentations of that stimulus. Responses that habituate encompass those who involve the intact organism or those that contain simplest additives of the organism.

Learn more about habituation here:- https://brainly.com/question/3916730

#SPJ1

22920 years old is an artifact if four half-lives have occurred and the half-live of carbon-14 is 5730 years.

Due to radioactive decay to nitrogen-14, carbon-14 has a very short half-life of 5,730 years, which means that over this time, the proportion of carbon-14 in a sample will have decreased by 50%.

A half-life is the amount of time it takes for something to go from 100% to 50%. The phrase is most frequently used in reference to radioactive decay, which happens when energetic atomic particles that are unstable lose momentum.

The half-life of carbon-14 is 5730 years. Accordingly, a sample of 100 carbon-14 atoms has a half-life of 5730 years, or 50 carbon-14 and 50 carbon-12 (i.e., 100 carbon-14, one half-life = 50 carbon-14, 50 carbon-12).

4 half lives

=5730×4

=22,920 years old.

To know more about Half-life visit:

https://brainly.com/question/24710827

#SPJ13

A body is considered to be discharged when it loses charge to the ground or another body.

The human body is an excellent conductor. Therefore, that will fall to the earth as the Charge passes through our bodies. Discharge of the body is the process by which the excess energy leaves the body and flows through it before falling to the ground. The term "earthing" refers to this idea.

Allowing the electricity to discharge from your body into the ground is the quickest approach to eliminating static electricity from the body. Touch any conductive object that is not isolated from the ground to enable this, such as a metal light pole or the screw on a light switch panel.

Learn more about the discharged bodies at:

https://brainly.com/question/3212781

The output of this device is equal to 550 000-315 000 = 235 000, or 42.7%, of its energy efficiency.

Efficiency is the percentage of input work that is actually completed by the machine (output work). The fact that some of the input work is used to reduce friction is the main cause of the output work always being less than the input labor. Efficiency is never 100% and is therefore always less than 100%..

Due to internal friction, simple machines are always less efficient than 1.0. conserving energy When friction is ignored, the work performed on a simple machine is equivalent to the work performed by the machine to complete a task.

To know more about Machine Efficiency visit:

https://brainly.com/question/28881279

#SPJ9

The angular velocity is obtained from the calculation as 13.7 rad/s.

Let us recall that the term circular motion is applied to the kind of motion that is carried out by an object that is moving along a circular path. Given the fact that we have an object that is spinning around in a circular path, we can say that a circular motion is actually taking place in the system that involves the athlete, the ball and the rope.

We are told that the athlete is 181cm tall, with an arm length of 90 cm and is using a standard ball and chain for the event which is 121cm long. As the athlete begins to spin , their body becomes the center of the motion, with both arms holding on to the ball and chain handle then the initial linear velocity of the ball and chain is 29m/s upon its release.

We can now see that the radius of the path is 90 cm + 121 cm = 211cm or 2.11 m

Using;

V = rω

ω = V/r

ω =  29m/s/2.11 m

ω = 13.7 rad/s

Learn more about angular velocity:https://brainly.com/question/12446100

#SPJ1

The impulse is mathematically given as

v_f=3.61m/s

This is further explained below.

Generally, In classical mechanics, the integral of a force F over the time period t during which it operates is referred to as the impulse of the system.

It should come as no surprise that impulse is likewise a vector quantity given that force is one.

When an impulse is applied to an item, a corresponding vector change in the object's linear momentum occurs, also in the direction that the impulse causes.

In conclusion, Impulse = Area Under Curve

             =2*4+1*4

  [tex]m\left(v_f-v_i\right)=12 \\\\v_f=\frac{12}{2.35}=5.11 \mathrm{~m} / \mathrm{s}\\\\m\left(v_f-(-1.5)\right)=12 \\v_f=5.11-1.5 \\\\ =3.61 \mathrm{~m} / \mathrm{s} \\v_f=3.61 \mathrm{~m} / \mathrm{s}\end{gathered}$$[/tex]

Read more about impulse

https://brainly.com/question/16980676

#SPJ1

CQ

A force of magnitude Fx acting in the x-direction on a 2.35-kg particle varies in time as shown in the figure below.

(a) Find the impulse of the force.

____________kg

The magnitude of the force F exerted by the leg on the small pulley is, F = 38.53 N

We can calvulate the magnitude of the force by a mathematical calculation, which is as follows. As the small pulley and mass are not moving, they are stationary.

t2=t1 = mg = (2.27)(9.8)

= 22.246 N

Now resolve the force in the opposite direction.

F = 2Tcos30°

F = (2)(22.246)(cos30°)

F = 38.53 N

Therefore, the magnitude of the force is 38.53 N.

To know more about Newton's third law refer to brainly.com/question/62770

#SPJ1

Part a: velocity-time graph

Where t is time in seconds after reaching the first checkpoint.

Part b:

Acceleration = change in velocity/time

a = (v2-v1)/t

v2: final velocity, v1: initial velocity, t: time

Let's keep track of all the variables we know:

v2 = 32 m/s, v1 = 20 m/s, t = 4 s

Now let's plug all the known variables in:

a = (32-20)/4 = 12/4

a = 3 m/s^2

d = (v1)*t + (a*t^2)/2

Let's keep track of all the variables we know:

v1 = 20 m/s, t = 4 s, a = 3 m/s^2

Now let's plug all the known variables in:

d = 20*4 + (3*4^2)/2 = 80 + 48/2 = 80 + 24

d = 104 m

/s

First, for us to start, let us draw the problem:

When we analyse this problem, we can see that the only velocity that changes overtime is the vertical velocity (due to gravity), so the horizontal speed is the same throughout the whole movement. This gives us the following:

Then, the horizontal speed at the peak of the trajectory (and also during the whole movement) is v=36.546m/s

Answer:

The development of the electron microscopes therefore helped scientists to learn about the sub-cellular structures involved in aerobic respiration called mitochondria . The scientists developed their explanations about how the structure of the mitochondria allowed it to efficiently carry out aerobic respiration.

Given:

Velocity = 40 m/s

Angle = 37°

Let's find the distance from the cnnon where you should place a matress to catch the human if the muzzle is 0.75 meters from the ground.

Let's first draw the projectile motion diagram:

To find the distance, first apply the formula to solve for the time taken for the human to reach the matress.

Where:

Height from the ground to the muzzle = yo = 0.75

y = 0

Velocity = vo = 40 m/s

initial vertical velocity = voy = vo sinθ = 40 sin37

We have:

g is the acceleration due to gravity = 9.8 m/s²

Now, let's solve for the time t:

To sove for the horizontal distance, x, apply the formula:

Hence, we have:

Therefore, the matress should be placed at 157.8 meters from the cannon in order to catch the human.

ANSWER:

157.8 meters

If the angular velocity id doubled, then the linear speed of the boy will be doubled.

As we know,

If a body is rotating in a circular path, it will have an angular as well as linear velocity.

The angular velocity is responsible for rotation and the linear velocity is responsible for changing the direction in a circular manner.

The angular velocity W is related to the linear velocity V as,

W = V/R

Let us say this is equation 1,

Where R is the radius of the merry go round,

Now if the angular velocity is doubled,

W' = V'/R

Let us say this is equation 2.

On dividing equation 1 and 2,

W/W' = V/V'

As we know, W' = 2W.

1/2 = V/V'

V' = 2V.

The linear velocity will increase by a factor of 2.

To know more about angular velocity, visit,

https://brainly.com/question/24158647

#SPJ1

Given:

The mass of the man is m = 110 kg

The man slides down with acceleration,

The acceleration due to gravity is

Required: The frictional force acting on the man.

Explanation:

The equation of motion to calculate frictional force is given as

On substituting the values, the frictional force will be

Final Answer: The frictional force is 88 N

Given

Three electrically charged spheres A,B and C. Sphere A is brought near Sphere B and both are attracted to each other electrically. Sphere B is brought near Sphere C and both repel each other electrically.

To find

What happens when Sphere A is brought near Sphere C?

Explanation

Sphere A and sphere B are attracted to each other.

Thus, both A and B are of opposite charge.

Let A be a positive charge and B be a negative charge.

When sphere B is brought near sphere C both repel.

Thus, sphere C is also of negative charge.

So A and C are then of opposite charges and would both attract each other.

Conclusion

When sphere A is brought near sphere then C)electrical attraction occurs.

In order to calculate the speed of the spacecraft, use the following formula;

where,

M: mass of the moon = 7.3*10^22 kg

G: Cavendish constant = 6.67*10^-11 Nm^2/kg^2

r: distance in between the spacecraft and the center of the Moon =

172 km + 1840 km = 2012 km

Replace the previous values of the parameters into the formula for v and simplify:

Hence, the speed of the spacecraft is approximately 4.91*10^4 m/s

To send information through verbal speech, transmitter cords send information encoded in radio waves through the air.

The basic principle is simple. At one end a transmitter encodes or modulates the message by varying the amplitude or frequency of the waves. This is a bit like Morse code. Meanwhile, a receiver tuned to the same wavelength receives the signal and decodes it into the desired format sound image data, etc.

Communications and satellite transmissions. Radio waves travel easily through the air. Radio waves are used for the wireless transmission of sound messages and information for communications, and for maritime and air navigation. Information is applied to an electromagnetic carrier wave as amplitude modulation AM frequency modulation FM or digital form pulse modulation.

Learn more about Radio waves here:-https://brainly.com/question/69373

#SPJ1

Answer: 85.4 km/h

Explanation:

We would apply the law of conservation of kinetic energy. The formula is expressed as

KE1 + PE1 = KE2 + PE2

where

KE1 and KE2 are the initial and final kinetic energies

PE1 and PE2 are the initial and final potential energies

The formula for calculating kinetic energy is

KE = 1/2mv^2

where

m is the mass of the object

v is the velocity

The formula for calculating potential energy is

PE = mgh

where

g is the acceleration due to gravity = 9.8m/s^2

h is the height of the object

From the information given,

m = 55

h = 8.3

Potential energy at the top = 55 x 9.8 x 8.3 = 4473.7

At the top, v = 72km/h

Recall, 1 km = 1000m

1 hour = 3600s

72km/h = 72 x 1000/3600 = 20m/s

kinetic energy at the top = 1/2 x 55 x 20^2 = 11000

KE1 + PE1 = 4473.7 + 11000 = 15473.7

At the point of landing,

PE2 =0

KE = 1/2 x 55 x v^2 = 27.5v^2

Thus,

27.5v^2 = 15473.7

v^2 = 15473.7/27.5

v = √(15473.7/27.5)

v = 23.72 m/s

his landing speed is 23.72 m/s

Converting to km/h, we would multiply 23.72 by 18/5

Landing speed = 85.4 km/h

To solve using these three variables, we can use this equation:

We're given:

⇒ Plug the given values into the equation:

distance = speed × time

distance = 10.8 m/s × 61 s

distance = 658.8 m

The dog ran 658.8 m in that time.

We are asked to determine the force exerted on the object. To do that we will use Newton's second law:

Where:

Now, we substitute the values:

Solving the operations:

Therefore, the force is 9N.