An election accelerated through 1 kV possesses de - Broglie wavelength 1. What will be the wavelength of the same electron, when accelerated through 16kV:
1) 161
2) 41
3) 1/4
4) 116

The period of a pendulum varies directly as the square root of the length of the pendulum and inversely as the square root of the acceleration due to gravity. find the period when the length is 144 cm and the acceleration due to gravity is 980 cm per second squared, if the period is 7pi seconds when the length is 289 cm and the acceleration due to gravity is 980 cm per second squared.

Aforce of 8,480 n is applied to a chart to accelerate it at a rate of 26.5 m/s2. what is the mass of the cart?

How does the strength of the electrostatic force between an electron and a proton compare to the strength of the gravitational force between them?