A 200 kg golf cart strikes a 1500 kg car with 1000N of force, bringing its velocity from 5 m/s to 0 m/s in 1 second. How much force did the car apply to the golf cart?

Question 6 options:

100 N


1000 N


1500 N


Not enough information has been given to solve the problem

Answers

Answer 1
Answer:

1000N

Explanation:

From Newton's third law of motion, for every action there is an equal and opposite reaction. In other words, when two bodies are in collision, the forces acting between these bodies are equal in magnitude and opposite in direction.

In the case presented in the question, the bodies are the golf cart and the car. During collision, the golf car strikes the car with a 1000N of force (that is the action). Consequential of this, though in the opposite direction, the car will apply an equal force of 1000N (that is the reaction) on the golf car.

Therefore the car applied a force of 1000N on the golf cart.

Answer 2

Answer:

The car applied a force of 1000 N to the golf cart

Explanation:

Based on the laws of conservation of linear momentum, we have that linear momentum is always conserved during a collision.

By Newtons Second law, (impulse law),

[tex]Ft = [m_{1}(v-u)+ m_{2}(v-u)][/tex]

Let m 1 be the mass of the golf cart, and v 1 its initial velocity. They are = 200 kg and 5 m/s respectively.

Let m 2 be the mass of the car, and  V 2 it initial velocity. They are = 1500 kg and 0 m/s respectively.

The time involved is 1 second

Applying the values of the variables to the formula, we have.

[tex]F \times 1 = [200 \times (5-0) - 1500 \times (0-0)][/tex]

From this we have that the force the car applied to the golf cart is = 1000 N


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X-ray)
because Electromagnetic waves are in act

Answer:

d

Explanation:

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Answer:

I think the answer is D-they require onky one electron to fill their outer energy level.

In which sound wave application are sound waves absorbed?

Answers

Answer: ultrasonic cleaners

Explanation:

To solve this we must be knowing each and every concept related to  sound wave. Therefore, in ultrasonic cleaners, sound waves are absorbed.

What is sound wave?

A sound is a type of energy or a vibration that moves through a material such as air or water. Sound may pass through such a gaseous medium as well. It is anything that is audible. The velocity of sound varies depending on the medium.

A wave is a medium that transmits energy from one location to another. Waves are classified into three types: transverse waves, longitudinal waves, or surface waves.

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Therefore, in ultrasonic cleaners, sound waves are absorbed.

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The life cycle of stars may be boiled down into a tug of war, lasting billions of years, between two basic forces. In your own words, describe these forces, and identify which of the two eventually "wins" the battle.

Answers

Answer:

Stars are very massive stellar objects, which means that they have a very intense force of gravity. This is the first of the forces entering this "war".

In addition to that, due to the force of gravity that drives the star to contract, the process known as fusion occurs (the union of atoms of one element that results in another element, hydrogen fuses in stars to produce helium). The fusion created in the high temperatures of the center of the star generates an enormous amount of energy (which causes the stars to shine) and a force going outward of the star counteracting gravity, this is the second force in the "war" .

In a stable star these two forces (gravity going inward and the pressure created by the fusion going outward ) are in balance, preventing the star from exploding or collapsing. But eventually the star exhausts its "fuel" (hydrogen atoms) to produce fusion within it (although stars also fuse helium and other heavier elements, but once the hydrogen is finished the star is near its end), which decreases the force outward from the star, making the force that wins this battle to be the force of gravity.

When the force of gravity wins, the star collapses on itself and from here, depending on the star's mass, several things can happen, such as the star becoming a white dwarf, a supernova, even a black hole.

The life cycle of stars may be boiled down into a tug of war, lasting billions of years, between two basic forces -

Pressure due to fusion reactions pushes outwards.Gravity pulls inwards to keep the star in equilibrium.And gravity wins the battle in the end.

Stars are very massive stellar objects and remain the longest in the stage when it is burning Hydrogen into Helium.

Stars have a very intense force of gravity that drives the star to contract, the process known as fusion occurs.Due to fusion, high temperatures of the center of the star create an enormous amount of energy and a force of pressure going outward of the star counteracting gravityGravity going inward and the pressure created by the fusion going outward is in balance, preventing the star from exploding or collapsing.Due to exhausting hydrogen atoms, fusion stops eventually and it decreases the force outward from the star, making the force that wins this battle to be the force of gravity.

Thus,

The life cycle of stars may be boiled down into a tug of war, lasting billions of years, between two basic forces -

Pressure due to fusion reactions pushes outwards.Gravity pulls inwards to keep the star in equilibrium.And gravity wins the battle in the end.

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Kinetic friction is the frictional force needed to start an object at rest into
motion.
A. True
B. False

Answers

Answer:

b.false i think

Explanation:

i hope i am correct and helps you

Answer:false

Explanation:

I just did it

What is the formula for velocity???

Answers

Explanation:

divide the distance by the time it takes to travel that same distance, then add your direction to it.

Or change in displacement divided by change in time.

Rafael swings a baseball bat with a force of 25 N. The baseball bat exerts a force of 5 N on the baseball. What is the mechanical advantage of the baseball bat? The mechanical advantage of the baseball bat is

Answers

Answer:

0.2

Explanation:

Mechanical Advantage is defined as the ratio of force output with respect to the force input. Thus,

MA = output / input

MA = 5 / 25

MA = 1/5

MA = 0.2

Since this value is less then one. Even though it's tagged a mechanical advantage, in reality it would be mechanical disadvantage.

Therefore, we can say that the mechanical advantage of the baseball bat is 0.2

Answer:

0.2

Explanation:

The graph to the right represents the change in velocity of four cars over a period of 10 hours. Which line represents the car with the greatest acceleration?
A. A C. C
B. B D. D
Please help me

Answers

Answer:

there is an option for uploading the pic of a diagram while posing any question on brainly. hope you use that feature of the app to upload graph of your question so that it can be well answered

Answer: It’s A!

Explanation: I took the test

which factors affect the strength of magnetic field around current carrying wire?

Answers

Explanation:

The expression for the magnetic field around the current carrying wire is given by :

[tex]B=\dfrac{\mu_o I}{2\pi r}[/tex]

Here,

I is electric current and r is distance from the wire.

The factors affect the strength of magnetic field around current carrying wire are :

Electric currentDistance from wire

4. The batteries on electric vehicles are recharged using electricity from either a wall socket or dedicated charging
unit.
A) O True
B) O False

Answers

Answer:

Hey!

Your answer is A) TRUE!

Explanation:

The electricity in this instance is called "grid-electricity" because it has come from a generation plant elsewhere instead of recharging the batteries via Kinetic/Potential energy...

Which phrases describe all the outer planets’ motion? Select two options.

no rotation
fast rotation
slow revolution
opposite revolution
north to south rotation

Answers

Answer:

Fast rotation

Slow revolution

Explanation:

Solar system has 8 planets. 4 inner rocky planets - Mercury, Venus, Earth and Mars and 4 outer gaseous planets - Jupiter, Saturn, Uranus and Neptune.  The outer planets have few common features.

They are gaseous. There  period of revolution is larger than the inner planets which means that they have slow revolution about the Sun. One day on the outer planets is smaller than the inner planets which means they have fast rotation.

For example, Jupiter has revolves around sun in 11.86 Earth years and rotates about axis in 9.8 Earth hours. Uranus revolves around sun in 84 Earth years and rotates on its axis 17.9 Earth hours.

Answer:

Fast rotation

Slow revolution

Explanation:

did the test

To hear a train approaching from far away, why is it more convenient to put the ear to the track?

Answers

Answer:

If you want to hear a train approaching from far away,it is more convenient to put the ear to the track.This is because sound can travel through railway track (solid ) faster than through air.

you drop a rock off of a cliff, and it hits the ground 8.1 seconds later. how tall is the cliff?

Answers

Answer:

the answers is 321 m

Explanation:

here's a picture of it

Work out the kinetic energy of a 2.5 kg remote-controlled car that is moving at 2 m/s.

Answers

Answer: 5 joules

Explanation:

mass=m=2.5kg

Velocity=v=2m/s

Kinetic energy=ke

ke=(m x v x v)/2

ke=(2.5 x 2 x 2)/2

Ke=10/2

Ke=5

Kinetic energy=5 joules

The kinetic energy of a 2.5 kg remote-controlled car that is moving at 2 m/s is 5 Joules.

What is kinetic energy?

The energy which an item has as a function of motion is determined by the initial energy. It is described as the effort required to propel a material body from rest to the given velocity.

It is given that:

Mass of the remote-controlled car = 2.5 kg

Velocity of the car = 2 m/s

As we know,

Kinetic energy = k

k = (mv²)/2

As we know,

The mass is a tangible body's mass is the amount of matter it possesses. It's also a metric of inertia or the resistance to velocity when a net force is exerted.

m = 2.5 kg

v = 2 m/s

k = (2.5×2²)/2

k = 10/2

k = 5 Joules

Thus, the kinetic energy of a 2.5 kg remote-controlled car that is moving at 2 m/s is 5 Joules.

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Jenny and Fred both play a long note on their trombones. A stationary observer hears the sound increasing and decreasing repeatedly in loudness. Which of these must be true?
A.The sound waves from the two trombones have slightly different frequencies.
B. The sound waves from the two trombones have the same frequency.
C. The sound waves from the two trombones have slightly different amplitudes.
D. The sound waves from the two trombones have the same wavelength.
E. The sound waves from the two trombones have slightly different velocities.

Answers

Answer:

A.The sound waves from the two trombones have slightly different frequencies.

Explanation:

This is because, a difference in frequency of waves from two different sources would result in either constructive or destructive interference of the waves. Thereby, causing the observer to hear the sound increasing or decreasing.

Answer:

A.The sound waves from the two trombones have slightly different frequencies.

In an inelastic collision, which of the following statements is always true?

[A] Kinetic energy is conserved in the collision.
[B] Momentum is conserved in the collision.
[C] After the collision, the objects always merge into one.
[D] The collision takes more that 1 second to complete.

Answers

Well C is definitely one of the correct answers.

Answer: A

Explanation:

A

The half-life of cobalt-60 is 5.26 years. If 50 grams are left after 15.78 years, how many grams were in the original sample?

Answers

Answer:

Explanation:

Half life  = 5.6

no of half life in 15.78 years = 15.78 / 5.26

= 3 .

[tex]N = N_0(\frac{1}{2})^n[/tex]

N₀ is original mass , N is mass after n number of half lives.

Inserting the given data in the equation above

[tex]50 = N_0(\frac{1}{2})^3[/tex]

N₀ = 50 x 2³

= 400 gm .

original sample will contain 400 gms of sample.

El dibujo muestra donde se encuentra un caracol en distintos instantes de tiempo.?Podemos afirmar que se trata de un movimiento acelerado?Razona tu respuesta

Answers

Answer:

if the acceleration is zero the displacements are equal in the same time interval, so we would see the points equally spaced in the diagram

if the acceleration is different from zero in these cases the intervals are different in the same time intervals

Explanation:

In a drawing of displacement as a function of time, we can know if in motion it is steely or not, the relationship that describes the motion is

            x = v₀ t + ½ a t²

we see that we have two cases:

* if the acceleration is zero the displacements are equal in the same time interval, so we would see the points equally spaced in the diagram

* if the acceleration is different from zero in these cases the intervals are different in the same time intervals. In the case of positive acceleration the points are spaced and in the chaos negative acceleration the points are getting closer to each other

Explain why beaches can be considered both erosional and depositional. Remember to write in complete sentences!

Answers

Answer:

Waves wash against the shore which can lead to erosion. However, the waves also bring in pebbles and sand particles from the ocean, which is an example of deposition.

Explanation:

That would be my answer

What is true of a match burned in a closed system?

Answers

Answer:

The match is made of wood or paper, mainly cellulose, a carbohydrate. When it burns, carbon and hydrogen combine with oxygen in the air and go off into the atmosphere. The match loses mass, but the mass goes somewhere else—in this case, the atmosphere. When a match burns, its mass decreases

Explanation:

PLEASE GIVE ME BRAINLIEST IF NEW IT SHOULD SAY NEAR MY ANSWER MARK AS BRAINLIEST IF NOT YOULL HAVE TO WAIT A DAY AND BRAINLY WILL REMIND YOU

An ice skater spins at 2.5 rev/s when his arms are extended. He draws his arms in and spins at 10.0 rev/s. By what factor does his moment of inertia change in the process?

Answers

Answer:

The moment of inertia decreased by a factor of 4

Explanation:

Given;

initial angular velocity of the ice skater, ω₁ = 2.5 rev/s

final angular velocity of the  ice skater, ω₂ = 10.0 rev/s

During this process we assume that angular momentum is conserved;

I₁ω₁ = I₂ω₂

Where;

I₁ is the initial moment of inertia

I₂ is the final moment of inertia

[tex]I_2 = \frac{I_1 \omega_1}{\omega_2} = \frac{I_1*2.5}{10} \\\\I_2 = 0.25I_1 = \frac{1}{4}I_1[/tex]

Therefore, the moment of inertia decreased by a factor of 4

A CFL bulb has an efficiency of 0.42 and a imput of 14W. what is the output power
I really need help.

Answers

Answer:

The output power is 5.88 W.

Explanation:

We have,

Efficiency of CFL bulb is 0.42

Input power is 14 W

It is required to find the output power. The ratio of output power to the input power is called efficiency. It is given by :

[tex]\eta=\dfrac{P_o}{P_i}[/tex]

[tex]P_o=\eta\times P_i\\\\P_o=0.42\times 14\\\\P_o=5.88\ W[/tex]

So, the output power is 5.88 W.

which has a greater kinetic energy, a bowling ball that has a mass of 5kg travelling at 6m/s, or a ship that has a mass of 120000kg and is moving at 0.02m/s?​

Answers

Answer:bowling ball has greater kinetic energy

Explanation:

Kinetic energy of bowling ball:

mass=m=5kg

Velocity=v=6m/s

Kinetic energy =ke

Ke=0.5 x m x v x v

Ke=0.5 x 5 x 6 x 6

Ke=90J

Kinetic energy of ship:

mass=m=120000kg

velocity=v=0.02m/s

Ke=0.5 x m x v x v

Ke=0.5 x 120000 x 0.02 x 0.02

Ke=24J

The bowling ball has greater kinetic energy than the ship.

What is kinetic energy?

The kinetic energy of an object is the work an object can do by its motion. Kinetic energy is a scalar quantity as it does have magnitude only.

When work is done, energy is transferred, and the object moves at a new speed. The energy is transferred kinetic energy, which depends on the mass and speed.

The SI unit of kinetic energy is Joule and the CGS unit of kinetic energy is erg. The expression of kinetic energy that is used to calculate it is:

K.E. = (1/2) mv²

The mass and the velocity of the bowling ball are 5 Kg and 6 m/s respectively.

The kinetic energy of the bowling ball = (1/2) × 5× (6)² = 90 J

The mass and the velocity of the ship are 120000 Kg and 0.02 m/s respectively.

The kinetic energy of the bowling ball = (1/2) × 120000× (0.02)² = 24 J

Therefore, the kinetic energy of the bowling ball is greater than the ship.

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I’m a freshman, I got a 80% in the first quarter, 85% in the second and 70% in the third. I have a 46% in the fourth and 34 total absences in the class. If I fail, will I fail the class or the entire grade

Answers

Answer:

you will pass but if your grade become lower and u get more absences you will fail

A walkman uses four standard 1.5 V batteries. How much resistance is in the circuit if it uses a current of 0.02A? *

Answers

Answer:

75ohms

Explanation:

V= IR

V = 1.5volts

I = 0.02A

1.5 = 0.02×R

Making R the subject

R = 1.5/0.02

R = 75ohms

The resistance in the circuit will be 75ohms

Are carbon compounds rigid and strong

Answers

yes, but it takes a lot of energy to break all those iconic bonds .

Two water waves meet at the same point, one having a displacement above equilibrium of 60 cm and the other having a displacement above equilibrium of 80 cm.

Answers

Answer:

The resultant displacement is 140 cm

Explanation:

say first displacement d₁ is 60 cm

and second displacement d₂ is 80 cm

Resultant displacement = d₁ + d₂

= 60 + 80

= 140 cm

Answer:

Explanation:

To solve this problem it will be necessary to apply the interference principle.

Under this principle interference is understood as a phenomenon in which two or more waves overlap to form a resulting wave of greater, lesser or equal amplitude. In this case, if both are at the same point, the result of the total displacement will be the sum of the individual displacements, therefore

[tex]x = \sum h_i\\\\x = 60cm + 80cm\\\\x =140cm[/tex]

Therefore the resulting displacement above equilibrium is 140cm

What energy transformations take place in Joule's system?

Answers

The gravitational potential energy from the wheel, turns into motion energy.
The Motion energy turns into thermal energy because the water temperature rising.

a man is trying to move a piano by himself, but it will not move, what force must they overcome to start the piano moving?

Answers

Answer:

The friction of the piano and the weight

Explanation:

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