An element has 50 protons nd 90 neutrons. will the nucleus breakdown? why or why not?

A: hydrogen and hydrogen b: copper and copper c: copper and oxygen Rank the above bonds in terms of increasing bond strength. Choices A: a

What do you mean by negative acceleration? can an accelerating automobile starting from rest have a negative acceleration

Which layer of the atmosphere has the lowest density?

What of the following does NOT influence resistance? * A. thickness of wire B. temperature C. material of wire D. Number of components

A 0.0780 kg lemming runs off a 5.36 m high cliff at 4.84 m/s. What is it's kinetic energy (KE) when it lands?

State the molecular theory of magnetism

A 0.50 kg croquet ball is initially at rest on the grass. When theball is struck by a mallet, the average force exerted on it is240 N. If the ball's speed after beingstruck is 3.0 m/s, how long was the malletin contact with the ball?

What is the speed of a 0.145kg baseball if its kinetic energy is 109J?

A student travels from st. louis to indianapolis, a distance of 210 mi, in 7.0 h. the return trip over the same route takes 6.0 h. what is the average speed for

If the velocity of a moving object doubles, then what else doubles?