A cubical metal block of mass 8 kg exerts a pressure of 2000 Pa when resting on a flat horizontal surface. What is the density of the metal?(include no units in your answer)

If gases like carbon dioxide and methane make up less than 1% of the total atmosphere, why is it important for scientists to monitor changes in percentages of these gases?

Electromagnetic induction. a coil of wire contains n turns and has an electrical resistance r. the radius of each turn is a. initially, inside the coil there exists a uniform magnetic field of magnitude b0 parallel to the axis of the coil. the magnetic field is then reduced slowly. the current induced in the coil is i. how long does it take for the magnitude of the uniform field to drop to zero?

The combining of light nuclei is called blank. blank as in not actually blank. you know what im tryin to say.