Physics, 07.11.2020 19:40 lwaites18

When two soft, deformable objects such as two balls of putty collide, A)the internal energy is conserved
B) the kinetic energy is conserved
C) chemical energy is conserved as the objects get warmer
D) the sum of the kinetic energy and the internal energy is conserved

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Answer from: tinklover1413

D) the sum of the kinetic energy and the internal energy is conserved

Explanation:

When soft deformable objects such as two balls of putty collide, their total energy will be conserved , according to law of conservation of energy .

Their energy involves kinetic energy and potential energy . Their kinetic energy is due to their motion . Their potential energy is due to their shape . If there is change in their shape , there will be change in their potential energy .

Their internal energy consists of potential energy and thermal energy . Due to collision , heat will be produced so their thermal energy will also change . In this way there will be change in their internal energy .

But in spite of all these changes , total energy will be conserved . That means if one form of energy is reduced , the other kind will be increased and so on.

Hence the sum of the kinetic energy and the internal energy is conserved

Answer from: Quest

The kinetic energy also decreases when the particles in a liquid state decrease. the liquid is solidifying so the energy is cooling down.

Answer from: Quest

a solenoid is created by wrapping a l = 90 m long wire around a hollow tube of diameter d = 4.5 cm. the wire diameter is d = 0.9 mm. the solenoid wire is then connected to a power supply so that a current of i = 9 a flows through the wire.

randomized variablesl = 90 m

d = 4.5 cm

d = 0.9 mm

i = 9 a

write an expression for the number of turns, n, in the solenoid. you do not need to take into account the diameter of the wire in this calculation.

calculate the number of turns, n, in the solenoid.

write an expression for the length of the solenoid (l2) in terms of the diameter of the hollow tube d.

calculate the length of the solenoid (l2) in meters.

calculate the magnitude of the magnetic field at the center of the solenoid in teslas.

explanation:

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When two soft, deformable objects such as two balls of putty collide, A)the internal energy is cons...

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