Jack tries to place magnets on his refrigerator at home, but they won’t stick. what could be the reason?

a) the body of the refrigerator isn’t made of magnetic material.
b) earth’s magnetic field is interfering.
c) the magnet and the body of the refrigerator have like poles.
d) the refrigerator isn’t plugged into an electrical outlet.

Astudent looks at ocean waves coming into the beach. an ocean wave with more energy will a) have a greater height. b) have a greater period. c) travel toward the beach faster. d) strike the beach with greater frequency.

A30 kg weight lies on top of a massless piston of area a = 0.01 m2 the exterior air is at a (constant) p =1 atm and t = 27 c. the interior gas is 0.4 moles of (ideal) n2 and it has initial temperature 27.00 degrees c. 1. what is the initial pressure in the interior? a. 29.4 kpa b. 130.7 kpa c. 101.3 kpa the next three questions concern what happens when an amount of heat q is slowly added to the interior, raising the piston by 1 mm and raising the interior temperature to 27.40 c

Avoltaic cell converts chemical energy to