how much does a bookshelf weigh if the movers are pushing it at a speed of 10 m/s^2 by applying 100 N force
1 answer:
Answer:
10 kg
Explanation:
Assuming a frictionless surface, then force F=ma where F is the applied force, m is the mass and a is acceleration. Making m the subject of the formula then
Substituting 100 N for the applied force F and 10 m/s^2 for acceleration a then the value of m will be
Therefore, in terms of kilograms, the bookshelf weighs 10 Kg
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Answer:
The magnitude of the electric field in the second case will be of the electric field in the first case
Explanation:
The electric field at a distance < R from the center of the sphere is given by
the formula =
where R is the radius of the sphere, and, Q is the charge uniformly distributed on the sphere.
It is given that the same charge Q is distributed uniformly throughout a sphere of radius 2R and we have to find the electric field at same distance from the center.
In the second case the electric field will be given by
=
Therefore the magnitude of the electric field in the second case will be of the electric field in the first case.