Aprojectile of mass 64 is shot from the surface of planet z with mass 4.34 x 1024 kg and radius 5.91 x 106 m by means of a very powerful cannon. if the projectile reaches a height of 3.08 x 105 m above planet z's surface, what was the speed of the projectile when it left the cannon?

Explanation:

Gravity on the surface of the planet is given as

here we know that

now we have

now by energy conservation we have

initial KE + initial gravitational PE = final gravitational PE

with the invention of the automobile, the woman of the house could drive to the store and get groceries. women were also free to socialize more. during world war ii women were allowed to work in factories to the war effort and could drive to work or ride mass transit buses to their jobs.

wind moving at higher speeds will transfer more energy to the water, resulting in stronger waves.