A tennis ball is dropped on to the floor from a height of 19.6 m. It rebounds to a height of 4.9 m. If the ball is in contact with the floor
for 0.01 s, what is the average acceleration during the contact? (g =
9.8 m/s2)​

Simple machines can a. increase force only b. decrease force only c. increase or decrease force

What would people living along the coast in south florida do if there was a hurricane warning? move to locations away from the water flock along coasts to watch the natural phenomenon buy instruments to predict the exact location of the hurricane measure water levels to know the exact time of the hurricane

Emagnitude of the electrical force acting between a +2.4 ×  10–8  c charge and a +1.8 ×  10–6  c charge that are separated by 0.008 m is    n, rounded to the tenths place.