KE=0.5.m.v2 or PE=m.g.h
kinetic and potential energy practice problems solve and show your work
1. When a golf ball is hit, it travels at 41 meters per second. The mass of a golf ball is 0.045 kg. What is the kinetic energy of the golf ball?
2. the newly developed F-22 Raptor jet fighter weighs approximately 100,000kg and can travel up to 600 meters per second what is the kinetic energy of the F-22 jet fighter at this speed
3. if the jet fighter in #2 is traveling at a height of 10,000 meters, what would the potential energy be

Answers

Answer 1
F-22 is the correct answer
Answer 2

(1) The kinetic energy of the golf ball is 37.82 Joules,

(2) The kinetic energy of the F-22 jet fighter is 1.8 × 10¹⁰ Joules.

(3) The potential energy of the  F-22 jet fighter is 9.8 × 10⁹ Joules .

What is kinetic energy?

Kinetic energy is a type of power that a moving object or particle possesses. When an object undergoes work, which involves the transfer of energy, by exerting a net force, the object accelerates and consequently obtains kinetic energy.

Given:

The velocity of the ball, v = 41 m / s,

The mass of the golf ball, m = 0.045 kg,

(1)  Calculate the kinetic energy as shown below,

KE = 1 / 2 × 0.045 × 41²

KE  = 37.82 Joules

(2)  Calculate the kinetic energy of the F-22 jet fighter as shown below,

KE = 1 / 2 × 600² × 100000

KE = 1.8 × 10¹⁰ Joules

(3)  Calculate the potential energy of the jet as shown below,

PE = 100000 × 9.8 × 10000

PE = 9.8 × 10⁹ Joules

To know more about Kinetic energy:

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Related Questions

How fast is a 90kg man running if his kinetic energy is 720 J?

Answers

Answer:
4 m/s
Explanation:
KE=1/2mv^2
720=1/2(90)
720=45v^2
divide by 45
16= v^2
over the square root
4=v
v= 4m/s

How are defenders on a baseball team positioned ?

Answers

Answer:

1 (pitcher), 2 (catcher), 3 (first baseman), 4 (second baseman), 5 (third baseman), 6 (shortstop), 7 (left fielder) 8 (center fielder), and 9 (right fielder)

Explanation:

There are nine fielding positions in baseball. Each position conventionally has an associated number, for use in scorekeeping by the official score

there’s 3 outfield , and the rest are infield !

Which can support life? Carbon, silicon, or both?

Answers

Answer:

both

Explanation:

Silicon

Explanation:

The chemical element of atomic number 14, a nonmetal with semiconducting properties, used in making electronic circuits. Pure silicon exists in a shiny dark gray crystalline form and as an amorphous powder

PLS ANSWER FAST WILL GIVE BRAINLY!!!


When you bounce a ball eventually it will stop bouncing. Where does the energy go?

Answers

Answer:

Into sound and heat energy due to friction.

1. Using pollen grains placed in water,
explain how their motion supports the
idea that matter is not continuous.​

Answers

hope it helps!!!!!!!!!!!!!!!

A wave has a period of 4 seconds. Find it’s frequency.

Answers

Answer:

4 x the frequncy

Explanation:

So 4 x the number

A van of mass 2500kg travelling at a velocity of 12 m/s collides with a stationary car of mass 700kg. The vehicles move together after the impact. Calculate their velocity.​

Answers

Answer: 9.375m/s

Explanation: This is an inelastic collision, so the formula is mv1+mv2=(m1+m2)v-final. My work is a follows:

2500kg(12m/s) + 700kg(0m/s)=(2500kg+700kg)(v-final)

30,000kg(m/s)+0=3200kg(v-final)

30,000kg(m/s)/3200kg=9.375m/s

photo attached: please help!!!

Answers

Answer:

The center of mass changes

Explanation:

The higher the center of mass the more likely things are to topple over but the lower it is the more likely to stay put when all 4 wheels are down .

Carbon (C) is an element found in living organisms. How would carbon be classified in the hierarchy of organisms?

Answers

Answer:

Explanation:

A cell

who can teach me phsics​

Answers

A physics teacher with a certification

Which will reduce the possible environmental damage associated with mining uranium?

installing newer water recycling systems in older power plants
increasing the reprocessing of used fuel for reuse
building additional fission nuclear power plants
developing better places to store radioactive wastes

Answers

Answer:

Answer is the last option, d

Explanation:

edge 2021

. ........... is a mirror with a flat reflecting surface and is made of ordinary glass.

Answers

Answer:

Plane mirror.

Explanation:

A plain mirror is a mirror with a flat reflecting surface and is made of ordinary glass.

Reflection can be defined as a phenomenon which typically involves a change in the direction of a ray of light or waves as it falls on a smooth surface.

Simply stated, reflection occurs when a ray of light or wavefronts bounces off a smooth surface such as a plane mirror.

Generally, the angle of reflection equals the angle of incidence when a light ray strikes or hits a plane mirror.

The properties or characteristics of the images formed by a plane mirror include;

I. They are virtual and erect (upright).

II. It is the same size as the object formed.

III. It has the same distance from the plane mirror as the distance of the object from the mirror.

guys pls help which one is it

Answers

Answer:

a mixture

since it had the power to separate as the question says

Which of the following best completes the sentence for Newton's Third Law? In every interaction,
forces occur in

A. specific places
B. single units
C. one direction only
D. pairs

Answers

Answer:

D in pairs

Explanation:

Forces always come in pairs - equal and opposite action-reaction force pairs.

D , it comes in pairs

Help Please I will Give The Brainliest! (SCIENCE)

Answers

Answer:

2.

Hope this will help you.

PLS ANSWER FAST WILL GIVE BRAINLY!!!


How can you know if something has energy?

Answers

Answer:

You'll see it without noticing

Explanation:

for example: Magnets can pull to one thing, but using the other side of the magnet with the other magnet can push away the magnets, and turn it to their way of pulling, also electricity, movement, were making energy everyday, just by moving

aight here's the question:

Homeboy Joe is running at 6.65 m/s while Homegirl Jill is running at -1.10 m/s. Home boy Joe and Homegirl Jill hit each other. Homeboy Joe not wanting to be a stage 5 clinger. he makes sure he doesn't hold onto Homegirl Jill after they collide. If Homeboy Joe's mass is 99.5 kg and Homegirl Jill's mass is 68.8 kg. what is Homegir Jill's velocity after they hit if Homeboy Joe's velocity is 2.35?

***Round to the nearest hundredth***

Correct Answer: 5.12

I can't do PEMDAS to save my life can someone show me the correct way to solve with work? ​

Answers

Answer:

[tex]5.12\:\text{m/s}[/tex]

Explanation:

From the conservation of momentum, the total momentum of the system before and after the collision must be the same. Therefore, let the momentum of Homeboy Joe be [tex]p_b[/tex] and let the mass of Homegirl Jill be [tex]p_j[/tex]. We can write the following equation:

[tex]p_{bi}+p_{ji}=p_{bf}+p_{jf}[/tex], where subscripts [tex]i[/tex] and [tex]f[/tex] represent initial and final momentum respectively.

The momentum of an object is given by [tex]p=mv[/tex].

Therefore, we have:

[tex]m_{b}v_{bi}+m_{j}v_{ji}=m_{b}v_{bf}+m_{b}v_{jf}[/tex] (some messy subscripts but refer to the values being plugged in you're confused what corresponds with what).

Plugging in values, we have:

[tex]99.5\cdot 6.65 + 68.8\cdot (-1.10)=99.5\cdot 2.35+ 68.8\cdot v_{jf}[/tex].

Solving, we get:

[tex]v_{jf}=\frac{99.5\cdot 6.65+68.8\cdot (-1.10)-99.5\cdot2.35}{68.8},\\v_{jf}=5.11875,\\v_{jf}\approx \boxed{5.12\:\text{m/s}}[/tex].

It's important to note that velocity is vector quantity, so the negative velocity assigned to Jill simply implies she is moving at [tex]1.10\:\text{m/s}[/tex] in the opposite of Joe's direction. After the collision, she is now moving [tex]5.12\:\text{m/s}[/tex] in the same direction that Joe was initially moving, due to Joe's relatively large mass and initial velocity.

A rocket sled accelerates forward from 10 m/s to 50 m/s in 2 seconds. What is the acceleration of the sled?​

Answers

Answer:

Explanation:

Use kinematics equations

You have Vi=10m/s and Vf=50m/s and t=2s

Use equation Vf=Vo+at      50=10+a(2)

50=10+2a

40=2a

a=20 m/s^2

A t-shirt cannon is fired into a crowd at a baseball game. The t-shirt with mass 0.17kg is fired, and the launcher (2.7kg) recoils at 1.7 m/s. Calculate the launch velocity of the t-shirt. Answer to 2 decimals

Answers

Answer:

Exactly 27 m/s

Explanation:

P=mv

P(cannon)=2.7*1.7

P(cannon)=4.59 kg*m/s

P(cannon)=P(tshirt)

4.59=0.17*v

v=27 m/s

the relationship between force and acceleration verification of Newton second law of motion​

Answers

Answer:

below

Explanation:

According to Newtons Second Law of Motion, also known as the Law of Force and Acceleration, a force upon an object causes it to accelerate according to the formula net force = mass x acceleration. So the acceleration of the object is directly proportional to the force and inversely proportional to the mass.

How is impact force and impact time related when describing the same impulse?

a) Inversely proportional
b) Directly proportional
c) They are opposite to each other
d) None of the above

Answers

Answer:

The correct option is (a)

Explanation:

Impulse is given by the product of force and time. It is denoted by J. So,

[tex]J=F\times t[/tex]

or

[tex]F=\dfrac{J}{t}[/tex]

It can be seen that the relation between the force and the impact time is inverse. Hence, the impact force and impact time possess inverse relation.  

someone help please !!

Answers

Answer:

c.

is the answer please brainliest

I’m pretty sure the first one is the correct answer

What is the equation used to find the image distance? Identify each variable

Answers

Answer:i f I understand your question correctly, the formula is as follows:

Note: The sign convention is based on distances which are measured from the lens to the object or image of regard. Distances measured in the same direction the light is moving are positive and distances measured in the opposite direction the light is moving are negative.

The measurements are in meters

The “ambient” index of refraction is assumed to be n=1.00

The inverse of the object distance plus the dioptric power of the lens (convex—positive and concave—negative) equals the inverse of the image distance.

Or 1/Od +Dl =1/Id

Please note, it has been a long time since I thought about teaching this concept to students.

Hope this helps have a awesome day/night❤️✨

Explanation:

How are clouds related to water vapor and water droplets?


A.Water vapor in the air condenses to form tiny water droplets, and these water droplets make up clouds.

B.Water vapor in the air makes up clouds, but water vapor does not condense to form tiny water droplets that make up clouds.

C.Water vapor in the air condenses to form tiny water droplets, but the water vapor and water droplets do not make up clouds.

D.Water vapor in the air stays in the air as water vapor. The water vapor does not make up clouds, and it does not condense to form tiny water droplets.

Answers

Answer:

A!!!!!!!!!!!!!!!!!!!!!!!!!!!!

can someone please help me A wave’s velocity is 120 m/sec with a frequency of 6 Hz. What is its wavelength?

Answers

Answer:

by using formula,

wavelength= velocity/frequency

= 120/6

= 20 meter

Ans: 20 meter

Answer:

wavelength= velocity

= 120/6= 20 meter

Explanation:

pls help, i really dw fail :(​

Answers

Answer:

Using the Newton equation

V²=U² +2as

Given; V=9.2m/s U = 0m/s( because it starts from rest)

S=26.2m.

9.2²=0²+2(26.2)a

a =9.2²/2(26.2)

a=84.6/52.4

a=1.60m/s²

Answer:

2.A

3.D

Explanation:

HOPE THIS HELPS!! :)

Provide two reasons why is bronze still used in the manufacture of bells?
(NOVA ASSIGNMENT)

Answers

Answer:

Bell makers still use bronze because it has desirable properties, such as hardness and sound quality. The atomic structure of a pure metal is orderly and allows electrons to flow freely through the material. In bronze, the addition of tin to copper restricts the movement of the copper atoms.

hii pls help i’ll give brainliest if you give a correct answer

Answers

Answer: the first option: "the period of revolution of the Moon around Earth"

Answer:

The answer your looking for would be D.

Explanation: The other answers don't make any sense you can cancel them out D is the the answer the period of rotation of the moon around its axis.

Someone who strength trains twice a week can reduce their muscle loss percentage from % to % every decade.​

Answers

what? i’m very confused?

How many seconds will it take for a the International Space Station to travel 450 km at a rate of 100 m/s?

Answers

Time = (distance) / (speed)

Time = (450 km) / (100 m/s)

Time = (450,000 m) / (100 m/s)

Time = 4500 seconds (that's 75 minutes)

Note:

This is about HALF the speed of the passenger jet you fly in when you go to visit Grandma for Christmas.

If the International Space Station flew at this speed, it would immediately go ker-PLUNK into the ocean.

The speed of the International Space Station in its orbit is more like 3,100 m/s, not 100 m/s.

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