Acalorimeter has a heat capacity of 1265 j/oc. a reaction causes the temperature of the calorimeter to change from 22.34oc to 25.12oc. how many joules of heat were released in
this process?

A0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. the velocity of the rock is 4.50 m/s. what is the centripetal force acting on the rock? 15.5 n 5.22 n 69.8 n 23.5 n

The energy equivalent of the rest mass of an electron is

Wind and moving water provide energy. question 1 options: chemical mechanical thermal none of the above