A body moves with a velocity of 30.0 m/s. This speed is increased to 40 m/s in 4.0s.
Calculate
a) the average acceleration of the body.
b) the distance covered by the body.

An isotope undergoes radioactive decay by emitting radiation that has a –1 charge. what other characteristic does the radiation have?

Which statement is the best definition of an atom? a) anything that has mass and occupies space. b) the smallest particle that has the properties of an element. c) a substance that cannot be broken down chemically into simpler substances. eliminate d) the smallest unit of a substance that exhibits all of the properties characteristic of that substance.

In addition to gravity, what is the other predominant force that affects the motion of a pendulum?