Search & Filtering
The foothaller kicked the ball and it was caught by the opposing goalkeeper, 4 metres above theground. The ball was travelling at 10 m/s.
(i) Calculate the potential energy of the ball just before it was caught.
The foothaller kicked the ball and it was caught by the opposing goalkeeper, 4 metres above theground. The ball was travelling at 10 m/s Calculate the kinetic energy of the ball just before it was caught.
A 0,25kg volleyball is thrown horizontally at 2 m,s-1 west. It strikes a 0,62kg stationery basketball. The volleyball rebounds eat at 0,79. Calculate the velocity of the basketball immediately after the collision?
A 1050 kg car has a velocity of 2,65 north.The car guys the rear of a stationary truck,and the bumpers lock together.The velocity of the car truck system immediately after the collision is 0,78 north.Calculate the mass of the truck
an electron at rest is accelerated through a potential of 5000V. Calculate the de-brogile wavelength of matter wave associated with it.
An isolating electrically sphere of radius r and charge Q is supported on an insulator in air of permittivity write down an expression for the electric field intensity on the surface of the sphere- The force of repulsion between two positive points charge 5 microfarads and 8microfarads separating at a distance of 0.02m apart is what?
The plate of a parallel plate capacitor are 7mm apart and 1m2in area the plate are in vacuum if the pd applied is 100 volts across it's capacitor calculate the capacitance, charge on each plates and electric intensity
A piece of nylon cloth is used to clean the lenses of a pair of glasses. In doing so, which becomes positively charged? Negatively charged? Assume that the lenses are made of glass.
When a rabbit fur is rubbed with a acetate fiber, the fur acquires a change of magnitude 2.23nC.
a. Did the rabbit fur gain or lose electrons?
b. How many electrons were transferred during the process?
c. What is the change in mass of the rabbit fur?
d. What is the change in mass of the acetate fiber?
