A child drops a ball from a window. The ball strikes the ground in 3.0 seconds. What is the velocity of the ball the instant before it hits the ground?

What is magnetic force

Water erosion occurs when water seeps into cracks or joints in rock and then freezes.

1. The head of a rattlesnake can accelerate 50.00 m/s2 in striking a victim. If a car could do as well, how long would it take to reach a speed of 100.0 m/s from rest?

The moment arm of the biceps is approximately 2 cm from the axis of rotation of the elbow and the force vector representing the biceps is approximately 115 degrees from the positive x-axis.

If we compare and contrast electromagnetic waves with sound waves, all BUT one statement is true. That is A) sound waves require a medium to travel while electromagnetic waves do not.

a minibus drives 238 miles with a constant speed of 84 mph and another 80 miles with a constant speed of 60 mph. how much time in total does it take to travel these distance?

If the volume of a container increases, then the pressure will: A. first increase and then decrease. B. increase. C. stay the same. D. decrease.

How does the theory of natural selection explain the diversity of life?

What law states that when matter undergoes a physical or chemical change, no atoms are created or destroyed?

Which statement would be a valid argument in favor of using nuclear power? There are few negative impacts from mining the fuel. Reactors are safe from natural disasters. There are little to no waste products from fission.