Which statement about elements in the same family is true? a. they have similar atomic sybolsb. they have similar chemical properties c. they appear in the same row on the periodic table. d. they are in the same state of matter at room temperature

Polly is pushing a box across the floor with a force of 30 n. the force of gravity is –8 n, and the normal force is 8 n. which value could describe the force of friction if polly could not move the box?

Matter is needed to transfer thermal energy bya. conductionb. convectionc. radiation d. both a & b.

The california mussel (mytilus californianus) attaches itself to a rock or other solid surface with a bundle of filaments known as the byssus. imagine that 15.0 j of work is done to stretch the distal end of the byssus. it releases 10.8 j of thermal energy as it relaxes. what is the resilience of the distal end of the byssus?