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Ilia_Sergeevich [38]
3 years ago
12

The kinetic energy of a book on a shelf is equal to the work done to lift the book to the shelf. t/f

Physics
2 answers:
Svet_ta [14]3 years ago
7 0
The kinetic energy of a book on a shelf is equal to the work done to lift the book to the shelf is false. The kinetic energy on the shelf is zero because it is not in action.
algol [13]3 years ago
6 0

Answer: The given statement is false.

Explanation:

Kinetic energy is defined as the energy obtained by an object because of its motion.

For example, moving a pulley on the road.

Whereas energy of an object obtained due to its position is known as potential energy.

For example, lifting a book from table to the shelf shows position of the book has changed.

Therefore, we can conclude that the statement kinetic energy of a book on a shelf is equal to the work done to lift the book to the shelf, is false.

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professor190 [17]
Neither set of choices is correct.

If the distance is tripled, then the forces decrease to

1/9 Fg. and. 1/9 Fe.

Note. When the objects are charged, the gravitational force Fg can almost always be ignored, since Fe is like 10^40 greater when the quantities of mass and charge are similar.
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3 years ago
Sugarcane is an example of a plant that can be used to produce which kind of fuel
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6 0
3 years ago
Read 2 more answers
A particle has a charge of +1.5 µC and moves from point A to point B, a distance of 0.15 m. The particle experiences a constant
kirill [66]

Answer:

Part a)

F = 6 \times 10^{-3} N

Direction of force is along the motion of charge

Part b)

E = 4000 N/C

direction of electric field is along the direction of motion

Explanation:

Part a)

As we know that the change in electric potential energy is equal to the work done by electric field

W = EPE_A - EPE_B

W = 9.0 \times 10^{-4} J

now from the equation of work done we know that

W = F.d

(9.0 \times 10^{-4}) = F(0.15)

F = 6 \times 10^{-3} N

Direction of force is along the motion of charge

Part b)

As we know the relation between electrostatic force and electric field given as

F = qE

(6 \times 10^{-3}) = 1.5 \times 10^{-6} E

E = 4000 N/C

direction of electric field is along the direction of motion

8 0
3 years ago
Which is an example of a compound machine?
nydimaria [60]

Answer:

A bicycle.

Explanation:

A compound machine is a machine consisting of multiple simple machines.

A bicycle contains 3 simple machines. A lever, pulley, and wheel-and-axle.

all other choices are simple machines.

Hope this helps!

-MoCKEry

7 0
3 years ago
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What is potential energy​
JulsSmile [24]

Answer:

An Energy held by an object because of its position relative by other objects

Explanation:

6 0
3 years ago
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