An unstable nucleus has mass M and is initially at rest. It ejects a particle of mass m with speed v0. The remaining nucleus recoils in the opposite direction with a speed

choosing tennis and golf balls is your inde choice.

their mass and volume are dep

a longitudinal wave moves energy that is to the direction of the wave’s movement. - true

the earths atmosphere is made up of nitrogen and oxygen. solids can turn into gasses through a process called sublimation. sublimation is the transition of a substance directly from the solid to the gas phase, without passing through the intermediate liquid phase.

hope this : d

the old price per ounce is c/4.

the new price per ounce is c/3.6.

the ratio of the old price to the new one is

(c/4)/(c/3.6) = (c/c)×(3.6/4) = 0.9 . . = 9/10 . . "nine tenths" in either form