1. How far away will a ball land when thrown from a hill 70 m high at a 45 angle from the horizontal at an initial velocity of 9 m/s? 2. How long will it take for the ball in problem 1 to fall to the ground? Remember the pull of gravity is (-9.8 m/s)

3. What is the maximum height reached by the object?

Explanation:

= Height from where the ball is thrown =

= Angle of inclination =

= Initial velocity =

= Acceleration due to gravity =

Range of projectile is given by

The ball will land away.

Time of flight is given by

The time the ball will stay in the air is

Maximum height is given by

Maximum height the object will reach above the ground is .

the duration of a photographic flash is related to an rc time constant, which is 0.100 μs for a certain camera.

igneous rocks also form where plates converge. the subducting plate melts as it sinks into the crust of the earth, and the melt rises into the overriding plate forming volcanoes. metamorphic rocks are formed mainly in the lithosphere, wherever there is high pressure and high temperature. -woods