Scientists are working on a new technique to kill cancer cells by zapping them with ultrahigh-energy (in the range of 1012 W) pu
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Answer:
Explanation:
Given
e=100 N/C
M=0.15 g
The ratio of the electric force on the bee to the bee's weight can be determined by the following formula
Answer:
a)
b)
c)
Explanation:
the gravitational potential energy is given by:
The kinetic energy is given by:
the initial kinetic energy is zero because the motion started from rest, so:
applying the conservation of energy theorem:
The work done by the friction force is given by:
the angle of the force is 180 degrees because it's against the movement: