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Kinetic Energy
Page 8
Questions (2,129)
A student bounces a tennis ball. She drops the ball, and then it bounces back up to her. When does the ball have zero kinetic
3 answers
asked anonymously
77 views
As shown below, an object with a mass of 5 kg is moving at a speed of 10 m/s. Another object with a mass of 10 kg is moving at a
3 answers
asked anonymously
55 views
A 26-kg girl is bouncing on a trampoline. During a certain interval after leaving the surface of the trampoline, her kinetic
3 answers
asked by
Gabby
409 views
A student drops the same 10 kilogram bowling ball three separate times. She drops the ball from heights of 1 meter, 2 meters,
3 answers
asked anonymously
98 views
A student drops the same 10 kilogram bowling ball three separate times. She drops the ball from heights of 1 meter, 2 meters,
7 answers
asked anonymously
225 views
The tops of the towers of the golden gate bridge in san Francisco, are 227m above the water. suppose a worker drops a 655g
3 answers
asked by
shay
2,528 views
A student bounces a tennis ball. She drops the ball, and then it bounces back up to her. When does the ball have zero kinetic
3 answers
asked by
j coe
56 views
A person throws a ball up into the air, and the ball falls back toward Earth. At which point would the kinetic energy be the
3 answers
asked anonymously
63 views
Point A is at a potential of +270 V, and point B is at a potential of -130 V. An α-particle is a helium nucleus that contains
3 answers
asked by
Anonymous
926 views
As shown below, an object with a mass of 5 kg is moving at a speed of 10 m/s. Another object with a mass of 10 kg is moving at a
3 answers
asked by
j coe
47 views
4. In the diagram below, two objects of the same size and mass are released from rest at the starting position. Object 1 was
3 answers
asked anonymously
70 views
student drops the same 10 kilogram bowling ball three separate times. She drops the ball from heights of 1 meter, 2 meters, and
3 answers
asked by
j coe
91 views
A person throws a ball up into the air, and the ball falls back toward Earth. At which point would the kinetic energy be the
7 answers
asked anonymously
104 views
Suppose a spacecraft of rest mass 34000 kg is accelerated to 0.206c. How much kinetic energy would it have?
If you used the
3 answers
asked by
VJC
780 views
A boulder with a mass of 2,500 kg on a ledge 200 m above the ground falls. If the boulder's mechanical energy is conserved, what
5 answers
asked by
Adam
1,675 views
A student bounces a tennis ball. She drops the ball, and then it bounces back up to her. When does the ball have zero kinetic
3 answers
asked anonymously
73 views
A boy reaches out of a window and tosses a ball straight up with a speed of 10 m/s. The ball is 20 m above the ground as he
4 answers
asked by
Anonymous
3,129 views
One car has twice the mass of a second car, but only half as much kinetic energy. When both cars increase their speed by 5.0m/s,
3 answers
asked by
Taylor
7,854 views
What is the kinetic energy of a 2,00 kg car that is moving at 72 km/h?
1 answer
asked by
Tiki
395 views
As shown below, an object with a mass of 5 kg is moving at a speed of 10 m/s. Another object with a mass of 10 kg is moving at a
3 answers
asked anonymously
46 views
A student drops the same 10 kilogram bowling ball three separate times. She drops the ball from heights of 1 meter, 2 meters,
3 answers
asked anonymously
55 views
As shown below, an object with a mass of 5 kg is moving at a speed of 10 m/s. Another object with a mass of 10 kg is moving at a
13 answers
asked anonymously
312 views
Which of these energies might correspond to the KE of a person riding a bicycle on a road? 10 J; 1 kJ; 100kJ
KE is 1/2 mv^2. Take
3 answers
asked by
tasha
457 views
figure out the kinetic energy of each vehicle.
truck: 6000kg 92 km/h car: 1200kg 100km/h
2 answers
asked by
R
82 views
What is one way to decrease the kinetic energy of an object?(1 point)
Responses help !
4 answers
asked by
leah
91 views
Two objects with equal masses are in motion. Which object will have more kinetic energy?
9 answers
asked by
Anonymous
718 views
A baby carriage is rolling down a hill at 18 m/s. If the carriage has 1600 J of kinetic energy, what is the mass of the
2 answers
asked by
mark
1,058 views
A pole-vaulter has 3500J of energy when he crosses a bar 7 meters high. How much kinetic energy will he have just before he
3 answers
asked by
IRISHA HOQUE
494 views
A herder is herding his sheep into the corral. A mother sheep and its lamb are both running at 3.0 m/s towards the corral. The
6 answers
asked by
Mary
517 views
calculate the kinetic energy of
a. A 1kg trolley traveling at 2m/s. b. A 2g (0.002kg) bullet traveling at 400m/s. c. A 500kg car
6 answers
asked by
jessica
1,515 views
a child and a bicycle have a mass of 45kg together. The child rides the bicycle 1800m in 10 min at a constant speed. what is the
3 answers
asked by
kled
2,017 views
A 20.0 kg box slides down a 12.0 m long incline at an angle of 3.0 degrees with the horizontal. A force of 50.0 N is applied to
4 answers
asked by
Anonymous
1,548 views
A 42 kg girl is bouncing on a trampoline. During a certain interval after she leaves the
surface of the trampoline, her kinetic
3 answers
asked by
aithusa20
467 views
compute the kinetic energy of an 1800 lb automobile traveling at 30 mi/hr. how many times as great is the kinetic energy if the
3 answers
asked by
Anonymous
637 views
you and a flight attendant toss a ball back and forth in an airplane in flight. Does the kinetic energy of the ball depend on
4 answers
asked by
princess
2,401 views
75 kg block is dropped from a height of 6 m. How much kinetic energy does it have when it has fallen halfway?
4 answers
asked by
daviaa
699 views
At what speed must a 950 kg subcompact car be moving to have the same kinetic energy as a 3.2*10^4 kg truck going 20 km/h ?
3 answers
asked by
Jenny
884 views
A 46.7-g golf ball is driven from the tee with an initial speed of 55.5 m/s and rises to a height of 25.9 m. (a) Neglect air
3 answers
asked by
Anonymous
450 views
Calculate the kinetic energy that the earth has because of (a) its rotation about its own axis and (b) its motion around the
4 answers
asked by
Ashley
3,493 views
A car is traveling at 10 m/s. By what factor does the car's kinetic energy increase if its speed is doubled to 20 m/s?
2 answers
asked by
Mary
875 views
A 50 kg diver leaps off the 20 meter diving board with a velocity of 5 m/s. What is his kinetic energy just before hitting the
4 answers
asked by
Kathy
550 views
a 1kg object has kinetic energy of 1J when its speed is?
3 answers
asked by
tracey
479 views
Determine the ratio of the relativistic kinetic energy to the nonrelativistic kinetic energy (1/2mv2) when a particle has a
3 answers
asked by
Beth
3,517 views
A physics textbook is launched up a rough incline with a kinetic energy of 200 joules. When the book comes momentarily to rest
3 answers
asked by
Bob
1,243 views
a hammer falls off a rooftop and strikes the ground with a certain kinetic energy. if it fell from a roof twice as tall, how
7 answers
asked by
tim
1,823 views
A 59.0-kg runner has a speed of 3.20 m/s at one instant during a long-distance event.
(a) What is the runner's kinetic energy at
3 answers
asked by
Darcie
443 views
a large chunk of ice with mass 15 kg falls from a roof 8 m above the ground . find the kinetic energy of the ice when it reaches
3 answers
asked by
lala
2,001 views
What velocity at 60.0 kg jogger a kinetic energy 1,080?
2 answers
asked by
Anonymous
1,293 views
A 9.90-g bullet has a speed of 1.33 km/s.
(a) What is its kinetic energy in joules? (b) What is the bullet's kinetic energy if
4 answers
asked by
Jonathan
480 views
Does the KE of a car change more when it
accelerates from 27 km/h to 37 km/h or when it accelerates from 37 km/h to 47 km/h? 1.
3 answers
asked by
Mathew
1,099 views
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