Questions LLC
Login
or
Sign Up
Ask a New Question
Conservation of Energy
Page 2
Questions (269)
A baseball is thrown into the air as shown below.
Which is true about the total energy at point S? (1 point) Responses At point
3 answers
asked anonymously
54 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
411 views
An object falls through the air, gaining speed as it falls. A student claims that this creates new energy, and so it breaks the
3 answers
asked anonymously
116 views
An object falls through the air, gaining speed as it falls. A student claims that this creates new energy, and so it breaks the
3 answers
asked anonymously
107 views
The universe’s total amount of energy does not ever change, but the amount of this energy that is available to do work varies
7 answers
asked by
...
140 views
Blocks of mass m1 and m2 are connected by a massless string that passes over a frictionless pulley. Mass m1 slides on a
3 answers
asked by
Elizabeth
2,252 views
An object falls through the air, gaining speed as it falls. A student claims that this creates new energy, and so it breaks the
7 answers
asked by
yodog
74 views
Starting at rest, Tina slides down a frictionless waterslide with a horizontal section at the bottom that is 6.10 ft above the
3 answers
asked by
Anonymous
269 views
a hammer falls off a roof and strikes the ground with a certain amount of kenetic energy. if it fell from a roof twice, would
3 answers
asked by
ashley
1,187 views
Which best describes the law of conservation of energy?
a Energy exists in these forms: mechanical, chemical, thermal,
3 answers
asked by
rggg
175 views
An object falls through the air, gaining speed as it falls. A student claims that this creates new energy, and so it breaks the
3 answers
asked by
Anonymous
535 views
A 10,000 Kg railroad car, traveling at a speed of 24 m/s stikes an identical car, at rest.If the cars locked together as a
2 answers
asked by
Yunus
570 views
You and your bicycle have combined mass 80.0kg.When you reach the base of the bridge, you are
travelling along the road at
3 answers
asked by
Anonymous
1,247 views
A 1000 kg roller coaster begins on a 10 m tall hill with an initial velocity of 6m/s and travels down before traveling up a
3 answers
asked by
Matthew
2,152 views
An athlete with mass (m) running at speed (v) grabs a light rope that hangs from a ceiling of height H and swings to a maximum
4 answers
asked by
Anonymous
6,262 views
A basketball is dropped from a height of 2m and has a rebound of only 1.5m. what happened to that energy that was lost?
3 answers
asked by
Bianca
623 views
A package of mass 9 kg sits at the equator of an airless asteroid of mass 4.0 1020 kg and radius 4.9 105 m. We want to launch
3 answers
asked by
Jaden
627 views
From a height of 2.15 m above the floor of Boston's Fleet Center, forward Paul Pierce tosses a shot straight up next to the
3 answers
asked by
sam
1,212 views
A bullet of mass 10g travelling horizontally at a speed of 100m/s embeds itself in a block of wood of mass 990g suspended by
3 answers
asked by
Oterhia
2,343 views
According to the law of conservation of mechanical energy, if the only force acting on this pendulum is gravity, the total
4 answers
asked by
Anonymous
815 views
Universe total amount of energy doesn’t change but the amount of this energy that is available to do work varies, why
3 answers
asked anonymously
38 views
A 15 g lead bullet is tested by firing it into a fixed block of wood with a mass of
1.05 kg. The block and the embedded bullet
3 answers
asked by
Eric
1,893 views
. When a driver applies brakes to keep a car going downhill at constant speed and constant kinetic energy, the potential energy
4 answers
asked by
Anonymous
504 views
The pendulum in the diagram below swings from position A to B.
If we don’t consider friction, what happens to the total
5 answers
asked anonymously
86 views
One particle has a mass of 3.38 x 10-3 kg and a charge of +7.76 ìC. A second particle has a mass of 8.46 x 10-3 kg and the same
3 answers
asked by
sara
1,142 views
An object falling through the air, gaining speed as it falls a student claims that this create a new energy and so it breaks the
2 answers
asked anonymously
40 views
Based on the Law of Conservation of Energy, which of the below is true?(1 point)
Responses Kinetic energy is equal to potential
10 answers
asked by
anoy
85 views
an object falls through the air, gainign speed as it falls. a student claims that this creates new energy, and so it breaks the
16 answers
asked by
valentine
114 views
2. Consider the ball example in the introduction when a ball is dropped from 3 meters. After the ball bounces, it raises to a
4 answers
asked by
Sarah
4,718 views
A cylinder of gas does 970j of work on a piston. The gas also transfer 620j of energy to the piston and outside system while it
2 answers
asked by
Nathaniel Benson
49 views
When the pendulum shown below swings from point A to point B, what happens to its total mechanical energy (ignoring friction)?
(1
2 answers
asked by
Memes Goofy ahh ohio
60 views
A baseball is thrown into the air as shown below. Which is true about the total energy at point S? (1 point) Responses At point
23 answers
asked anonymously
56 views
A sled on top of a 3.1 m high hill has 3500 J of energy. Assuming that the friction is negligible, how much energy will it have
1 answer
asked by
lilie
140 views
An iron balls is drop into a congrats floor from a height of 10m. On the first rebouce it rises to 0.5m. Assume that all the
1 answer
asked by
Kunoun
379 views
Energy_______ be created or destroyed by ordinary physical or chemical process.
This concept is called the_________ throughout
3 answers
asked anonymously
41 views
You are told three things... 1. that there are two objects with equal masses 2. both objects are in motion. 3. one object has a
3 answers
asked by
logthedog101
315 views
A 64.4-kg skateboarder starts out with a speed of 1.95 m/s. He does 119 J of work on himself by pushing with his feet against
1 answer
asked by
Anonymous
371 views
A bungee jumper of mass 75kg is stadnding on a platform 53m above a river. The length of the unstretched bungee cord is 11m. The
1 answer
asked by
Sophie
682 views
An object falls through the air, gaining speed as it falls. A student claims that this creates new energy, and so it breaks the
3 answers
asked by
Alana
135 views
Why is the following situation impossible? A librarian lifts a book from the ground to a high shelf, doing 20.0 J of work in the
4 answers
asked by
Anya
2,940 views
Gayle runs at a speed of 9.00 m/s and dives on a sled, initially at rest on the top of a frictionless, snow-covered hill, that
3 answers
asked by
Anonymous
416 views
A body of mass m breaks up into 2 parts of rest mass m1 and m2 with velocity v1 and v2 ,what will be the energies of m1 and m2
1 answer
asked by
Krishna
277 views
A 80- kg child sits in a swing suspended with 2.6- m-long ropes. The swing is held aside so that the ropes make an angle of 46 o
2 answers
asked by
Anonymous
911 views
A 80- kg child sits in a swing suspended with 2.6- m-long ropes. The swing is held aside so that the ropes make an angle of 46 o
4 answers
asked by
Holly
1,163 views
A scientist wanted to move a golf ball and a bowling ball to both reach 15 mph. What would the scientist have to do differently
3 answers
asked anonymously
131 views
A boy with a mass of 30 kg stands motionless at the end of a diving board 3 m above the floor. The boy has:
Answer no energy.
2 answers
asked by
Allison
971 views
A father racing his son has one-third the kinetic energy of the son, who has two-fifths the mass of the father. The father
3 answers
asked by
Bill
1,180 views
A meter stick is held vertically with one end on the floor and is then allowed to fall. Find the speed of the other end when it
2 answers
asked by
D
1,007 views
Two cars are moving. The first car has twice the mass of the second car but only half as much kinetic energy. When both cars
1 answer
asked by
Emily
421 views
Two cars are moving. The first car has twice the mass of the second car but only half as much kinetic energy. When both cars
1 answer
asked by
Emily
397 views
Pages
1
2
3
4
5
6
Parent Categories (26)
Chemistry
Classical mechanics
Collisions
Dynamics
Energy
Energy and Motion
Energy and Work
Energy Transfer
Forces and Motion
Forms of energy
Kinematics
Kinetic Energy
Laws of Energy
Laws of motion
Laws of physics
Laws of Thermodynamics
Mechanical energy
Mechanics
Motion
Particle Physics
Pendulum
Physical Science
Physics
Thermodynamics
Work and Energy
Work, Power, and Energy