Which is an example of a gas?
the oil in your car
helium in a balloon
both of the above

Abowling ball rolling down the lane toward the pins has gravitational potential energy. a. no b. a lot of c. a little

Estimate the kinetic energy of the neptune with respect to the sun as the sum of the terms, that due to its daily rotation about its axis, and that due to its yearly revolution about the sun. [assume the neptune is a uniform sphere with mass = 1.0×1026 kg , radius = 2.5×1010 m , rotation period 16.1 h , orbital period 6.01×104 d and is 4.6×109 km from the sun.]

The resistance of 100 w bulb is less than resistance of 40 w bulb. explain the reason.