Two 1.0 kg masses are 1.0 m apart (center to center) on a frictionless table. each has a +10μc of charge. a) what is the magnitude of the electric force on one of the masses? b) what is the initial acceleration of one of the masses if it is released and allowed to move?

Arigid tank is divided into two equal parts by a partition. one part of the tank contains 3 kg of compressed liquid water at 400 kpa and 60°c while the other part is evacuated. the partition is now removed, and the water expands to fill the entire tank. determine the entropy change of water during this process, if the final pressure in the tank is 40 kpa. use steam tables.

Select light for the type of wave, adjust the wavelength so that the light is red, and increase the amplitude of the light to the max. then, select the start button at the source location to begin producing the waves. light is a form of electromagnetic wave, containing oscillating electric and magnetic fields. the wave amplitude detector mentioned above shows how the electric field oscillates in time at the location of the probe. the amplitude of the wave at the location of the probe is equal to the maximum electric field measured. how does the amplitude of the wave depend on the distance from the source?

When you hold a rectangular object, how does the area of the side that is resting on your hand affect the pressure and the force that the object exerts?