By throwing a ball at an angle 45 degrees a girl can throw the ball a maximum horizontal distance r on a level field how ar can se throw the same ball vertically upward assume that her muscles give the ball the same speed in each case. (is this assumption valid? )

Explanation:

Given

Initial launch angle

Suppose u is the initial launching velocity

Range of Projectile is given by

thus value of

If this ball is thrown vertically upward with u

then maximum height reached is

explanation:

earth's surface is mainly heated by the absorption of infrared radiation from the sun.

evaporation occurs because molecules in liquid water are warmed ( usually by the sun) and vibrate quicker, becoming less dense and rise.

condensation occurs because molecules in water vapor are cooled and therefore vibrate more slowly thus becoming more dense and eventually fall to earth.

lines of equal barometric pressure on a weather map are called: isobars : lines of equal temp on a weather map are called: isotherms.​

c

explanation: