A boy on the of a seesaw is handed a weight of 250 N. Where should he sit to balance? Position of the boy before the weight is given below

The total amount of energy contained in an object

Jenny wants to test the electrical conductivity of two substances dissolved in water. she is preparing the containers for the experiment. which factor is most important for her to control? a) volumes of the solutions b) appearance of the solutions c) temperatures of the solutions d) concentrations of the solutions

How much heat is needed to raise the temperature of 5g of water by 16°c?