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Because the ball is stationary, the sum of the forces acting on it must be equal to 0. We can split the ball's weight into two components: perpendicular and parallel to the slope.W(para)=2gsin60W(perp)=2g...
Answer: escape velocity v = sqrt[(2GM)/r], where G is the gravitational constant.Reasoning: Conservation of energy means that the total initial energy must be equal to the total final energy, ...
The force exerted on a charged particle q moving with a velocity v through an electric and magnetic field, E and B respectively. F=qE+qvxB. We usually care mostly about the magnetic part. It is also worth...
The first harmonic has wavelength λ1 = 4L and the next harmonic has wavelength λ2 = 4L/3<...
Conduction is the transfer of heat caused by the collision of particles inside a substance and between substances. In order to reduce heat loss, some thermos flasks have a vacuum between ...
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