How do the nuclei of different isotopes of an element vary?

If your brakes give out, why can't you just pull the keys out of the ignition?

The ammonia molecule (NH3) has a dipole moment of 5.0*10?30C? m. Ammonia molecules in the gas phase are placed in a uniform electric field E? with magnitude 1.8*106 N/C.

Why does earth rotates about it's axis?

Where would you except to find the center of gravity of a plastic ruler

A tow truck pulls a 1500 kilogram car wit a net force of 4000 Newtons. What's the acceleration?

What is the result of a mutation during replication A: the strands are different B: the strands are identical c: the strands are broken D: the strands are continuous

What is ___ heating of a liquid__ gas to liquid

A gate in an irrigation canal is constructed in the form of a trapezoid 2 m wide at the bottom, 38 m wide at the top, and 2 m high. It is placed vertically in the canal so that the water just covers the gate.

A machine with a mechanical advantage of 10 is used to produce an output force of 250 newtons. What input force is applied to this machine

Why do you float in space