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A positive charge q1= 4.2 *10^-8C is located at -2.0 cm, 5.0cm a negative charge q2 = -6.4*10^-8 is located at -3.0cm, 0.0cm and point P is located at 0.0cm, 3.0cm. Determine the electric potential at the point P.
Using the fact that the earth spins on its axis once per day, calculate the earth's orbital angular speed (in ) due to its motion around the sun.
A 0.11-kg balloon is filled with helium (density = 0.179 kg/m3). If the balloon is a sphere with a radius of 4.2 m, what is the maximum weight it can lift
If the proton is fired at a speed of 3.0×107m/s , what is its closest approach to the surface of the nucleus? Assume the nucleus remains at rest
A car of 1200 kg mass enters an unbanked, curved roadbed of radius 70 m. find the maximum speed with which the car can take the turn
a pump on the ground floor of a building can pump up water to fill a tank of volume 30 m3 in 15 min. if the tank is 40m
Two newly discovered planets follow circular orbits around a star in a distant part of the galaxy. What is the orbital period of the faster planet
Two alpha particles (helium nuclei), each consisting of two protons and two neutrons, What is the distance between these particles at this time
q1. charge of uniform density 80 ncm3 is distributed throughout a hollow cylinder region formed by two coaxial
The volume flow rate of the water supplied by a well is 1.53 x10-4 m3/s. The well is 31.8 m deep. Find the pressure difference the pump must maintain
A space station is constructed in the shape of a hollow ring of mass 6.00 x 10^4 kg and radius 130 m. how much work is done to get the space station spinning
A flat sheet of crystalline quartz has a thickness of 1.0 cm. It is on top of a flat sheet of diamond that has a thickness of 1.2 cm. how far would it have traveled in a vacuum
A mass m=0.5kg is hung from a pulley with moment of inertiaI=0.20 kgm2 and radius R=10cm. what is the torque due to friction
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