THE RIGHT ANSWER WILL RECEIVE A BRAINLESS AND POINTS AND THANKS What is the fundamental frequency of a mandolin string that is 42.0 cm long when the speed of waves of the string is 329 m/s?

A175 g lump of molten lead at its melting point (327 c) is placed into 55.0 g of water at 20.0 c. the specific heat of lead is 130.j/kg c and the hf of lead is 20,400 j/kg. when the lead and the water have reached equilibrium, what is the temperature of the mixture?

At very high pressures, gases become and will eventually a) more dense; become hotter b) more dense; change to a liquid or solid c) less dense; combust d) less dense; turn into a liquid

Suppose you increase your walking speed from 7 m/s to 13 m/s in a period of 2 s. what is your acceleration?