7.A ball falls from rest for 0.67 seconds, what is its final speed just prior to hitting the ground?

v = 6.57 m/s

Explanation:

if we use SUVAT equation , v = u + at

a = acceleration = 9.81 (if air resistance is negligible)

t = 0.67

u = 0 (as initial speed was 0, the ball increases the speed after)

v = 0 + (9.81)(0.67)

v = 6.57 m/s

weather forecasts are done by collecting data about the current state of the atmosphere mainly the temperature, humidity and wind and using meteorology, to determine the atmosphere that evolves over time. the h and l mean the high and low pressure. the red strip is a warm front. the blue strip is a cold front. the blue and red strip is a stationary front. the purple strip is a occluded front.

explanation: