Coulomb's law applies to:
like charges and unlike charges
charge motion
gravitational fields
moving objects

The boy of mass 30 kg is at r1= 2 meters from the fulcrum. of the girl is 45 kg, at what r2 must she sit so that they are balanced ?

True or false when elements combine to form a mixture, the resulting chemical properties may be very different from those of the elements that make it.

The table below shows the acceleration of gravity on different bodies in the solar system. on which body would a 10 kg lamp has the most gravitational potential energy when lifted to a height of 2 m? a. earth b. mars c. neptune d. uranus