Answer:
Work done, W = 337.35 Joules
Explanation:
It is given that,
Mass of the crate, m = 21 kg
Force exerted by the worker on the crate, F = 224.9 N
The crate is inclined at an angle of 40 degrees.
Distance covered by the slide, d = 1.5 m
Let W is the work is done on the crate by the worker's applied force. it is equal to the product of force and distance. It is given by :
W = 337.35 Joules
So, the work is done on the crate by the worker's applied force is 337.35 Joules. Hence, this is the required solution.
Answer:
it ends when clouds above start to break apart. Some tornadoes only last seconds. Others can last much longer. They come in many shapes and sizes.
M=energy transferred/ (temperature change*specific heat)
M= 5650/(26.6*1.0)
M=212g
Answer:
1) The net electric field at any location inside a block of copper is zero if the copper block is in equilibrium.
2) In equilibrium, there is no net flow of mobile charged particles inside a conductor.
3) If the net electric field at a particular location inside a piece of metal is not zero, the metal is not in equilibrium.
Explanation:
1) and 3) A block of copper is a conductor. The charged particles on a conductor in equilibrium are at rest, so the intensity of the electric field at all interior points of the conductor is zero, otherwise, the charges would move resulting in an electric current.
2) The charged particles on a conductor in equilibrium are at rest.