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Mechanical energy
Page 2
Questions (99)
A 250.0 kg roller coaster car has 20,000.0 J of potential energy at the top of the hill. Neglecting frictional losses, what is
2 answers
asked by
shannon
591 views
A marble is attached to a compressed horizontal spring and is then released. Which equation correctly shows the conservation of
3 answers
asked anonymously
47 views
a object potential energy is described as 1/2kx^2.
what does k and x represent? thanks. This is the PE in a stretched spring. k
2 answers
asked by
john
588 views
Hydroelectric dams work by blocking the path of a water source to create an area with water held back by the dam. The dam can
1 answer
asked by
just testing
42 views
A drawn bow possesses mechanical energy in the form of _______________. After the arrow is released, the energy is transformed
1 answer
asked anonymously
47 views
Hydroelectric dams work by blocking the path of a water source to create an area with water held back by the dam. The dam can
1 answer
asked by
bryan arnett
45 views
Lashonte was studying mechanical energy in science class. She noticed several possible examples of mechanical energy in her
1 answer
asked anonymously
32 views
Suppose the spring in this spring-powered rifle has a spring constant of k = 1,000 N/m. How much work can it do in accelerating
3 answers
asked by
christina
1,331 views
How is the work done to hoist the counterweight related to the potential energy of the counterweight at its specified height?
2 answers
asked by
faith
1,255 views
Flywheels are large massive wheels (disks) used to store energy. They can be spun up slowly, and then the wheel’s energy can
1 answer
asked by
Anonymous
1,227 views
You set your stationary bike on a high 80 N friction like resistive force and cycle for 30 min at speed of 8 m/s. Your body is
2 answers
asked by
bill
1,159 views
Neglecting friction, what happens to the total mechanical energy as the pendulum swings from position A to position B?
a It
1 answer
asked by
Nas guap
34 views
Hydroelectric dams work by blocking the path of a water source to create an area with water held back by the dam. The dam can
1 answer
asked by
Jus-A-Viewer
58 views
How much mechanical energy was lost during the ball's fall?
2 answers
asked by
seth
826 views
A 17kg child slides down a 2.7m -high playground slide. She starts from rest, and her speed at the bottom is 1.8 m/s. What is
2 answers
asked by
Joe
736 views
A ball is dropped from a height of 256 ft. With each bounce, the ball reaches a height that is half the height of the previous
2 answers
asked by
rebecca
718 views
A worker has to move a rock with mass 50 kg on a stairway from the first floor to the second floor of a house. The second floor
2 answers
asked by
diane
594 views
What is the total mechanical energy of a 3 kg object traveling at 7 m/s if its potential energy is 42 J?
A. 247.8 J B. 73.5 J C.
1 answer
asked anonymously
84 views
Is conservation of mechanical energy likely to hold in this situation? A soccer ball is thrown into the air. (Disregard air
2 answers
asked by
Anonymous
562 views
Which of the following contains the most mechanical energy?
A 10 kg ball at the top of a hill 10 meters high A 5 kg ball rolling
2 answers
asked by
Jordan
560 views
You take your backpack out of the car, hike to the top of a nearby mountain, and return with your backpack to your car at the
2 answers
asked by
may
551 views
The potential energy stored in the compressed spring of a dart gun, with a spring constant of 36.00 N/m, is 0.880 J. Find by how
2 answers
asked by
Ben
508 views
At the beginning of a roller coaster ride, the car is lifted to the top of a large hill and
released. The speed of the car at the
2 answers
asked by
Angie Need Help ASAP NOW
511 views
When learning about types of energy what are the types of energy for:
A. a lit match, yo-yo, bicycle, trampoline, apple,
1 answer
asked by
Sue
486 views
a 5.4 kg ball slides along a friction-less, horizontal surface at 6.2 m/s. The ball then encounters a ramp which slopes upward.
2 answers
asked by
andrea
476 views
A spring loaded gun is used to shoot a 1.3 kg ball from a rooftop. When the gun is fired, a compressed spring will be released
2 answers
asked by
Anonymous
503 views
A mass (0.5 kg) and spring (k = 250 N/m) system oscillates with an amplitude of 3.5 cm.
a) What is the total mechanical energy of
2 answers
asked by
Anonymous
465 views
A spring with a force constant of 1.0 N/cm is compressed to a displacement of 10.0 cm. When released, it's energy is used to
1 answer
asked by
Laura
462 views
A 0.05 kg toy is made up of a spring of constant 466 N/m. When you place the toy on the floor, the spring 5 cm and release it,
1 answer
asked by
hannah
470 views
Mechanical energy is the difference between the kinetic and potential energies of an object true or false?
3 answers
asked by
ravyn
452 views
Lashonte was studying mechanical energy in science class. She noticed several possible examples of mechanical energy in her
1 answer
asked by
Mujika
29 views
a large peopeller on a cruise ship is able to transform 2,500,000 J of mechanical energy into, 2,000,000 of electrical energy
1 answer
asked anonymously
15 views
A wound spring provides the energy to propel a toy car across a level floor at time ti, the car is moving at a speed vi across
1 answer
asked anonymously
62 views
How does a pulley help transfer mechanical energy?
a. it spreads the load out over two sides, making the load feel lighter b. it
1 answer
asked anonymously
26 views
What is the efficiency of a pulley if 5000 joules of energy results in 3000 joules of work? Please show your calculations.
1 answer
asked by
HELP!!!
18 views
A woman runs as shown.
What main energy conversion occurs? (1 point) Responses Mechanical energy changes into chemical energy as
1 answer
asked anonymously
93 views
While a woman runs what main energy conversion occurs.
A. Chemical energy changes into mechanical energy because energy from
1 answer
asked anonymously
27 views
Which of the following best describes mechanical energy?(1 point)
Responses The transfer of energy caused by a moving object. The
1 answer
asked by
lilacmoon
16 views
can potential spring energy = kinetic energy + work
1 answer
asked anonymously
14 views
Is potential spring energy = kinetic energy + work
1 answer
asked anonymously
9 views
Hydroelectric dams work by blocking the path of a water source to create an area with water held back by the dam. The dam can
1 answer
asked by
Um
53 views
Assuming 25% human efficiency, how many flights of stairs could a 65-kg person climb using the energy in the Snickers bar?
1 answer
asked anonymously
21 views
In this scenario a battery is used to supply chemical potential energy. The potential energy is transformed and produces kinetic
1 answer
asked anonymously
18 views
Riding a bike.
A)electrical energy B)thermal energy C)light energy D)mechanical energy E)chemical energy
1 answer
asked anonymously
14 views
Which of the following is the best example of mechanical energy?
A)a light bulb on B)a sun C)a person riding their bike D)a
1 answer
asked anonymously
17 views
Which of the following is the best example of mechanical energy?
a. a person riding a bike b. a light bulb c. the sun d. a
1 answer
asked anonymously
9 views
what kind of energy occurs when a flower wilts
1 answer
asked anonymously
7 views
Which of the following is the best example of mechanical energy?
a. A light bulb b. a megaphone c. riding a bike or d. sunlight
1 answer
asked by
e
12 views
Which of the following has mechanical energy?
Group of answer choices Battery Burger bun Sunlight Drawn bow
1 answer
asked anonymously
5 views
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Parent Categories (12)
Electrical Energy
Energy
Energy Conservation
Energy Conversion
Forms of energy
Hydroelectric Energy
Mechanics
Physics
Science
Transformation
Types of energy
Work and Energy