TRUE or FALSE: During a collision between objects of different mass, there is a greater force applied to the less massive object
1 answer:
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Answer:
the amount of heat that gets through both the wires will be same.
Explanation:
By the Fourier's law of conduction we have:
where:
= rate of heat transfer
k = thermal conductivity of the material
A = area of the material
dT = temperature difference across the length dx
According to the question, the system to be analysed is isolated from the surrounding.
Until the thermal equilibrium is established between aluminium and copper wires the amount of heat that gets through both the wires will be same.
<em>But the rate of heat transfer through the aluminium will be greater as it has double the thermal conductivity of copper.</em>
Answer:
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Explanation:
I did not explain because i got a photo
Answer:
option A
Explanation:
given,
For exerted by the worker = 245 N
angle made with horizontal = 55°
we need to calculate Force which is not used to move the crate = ?
Movement of crate is due to the horizontal component of the force.
Crate will not move due to vertical force acting on the it.
hence, worker's force not used to move the crate is equal to 200.69
The correct answer is option A