A ball is thrown downward from the top of a 55.0 m tower with an initial speed of 11.0 m/s. Assuming negligible air resistance, what is the speed of the ball just before hitting the ground?

What three elements have similar chemical properties to oxygen

A car starts from rest and reaches 20 m/s in 10 seconds. the average acceleration of the car in m/s2 is:

Explain how faults, mountains, and islands are formed.

What's the total resistance in a circuit that contains three 60 Ω resistors connected in series?

The Apollo Lunar Module was used to make the transition from the spacecraft to the moon's surface and back. Consider a similar module for landing on the surface of Mars. Use conservation of mechanical energy to answer these questions.

How was dyslexia treated in the past and how is dyslexia treated today?

The work of Charles Kuen Kao is likely to have been most influenced by the work of which of the following scientists? A. Galileo Galilei B. Christian Doppler C. Sir Isaac Newton D. Ibn al-Haytham

Suppose a car is moving in a straight line and steadily increases its speed. It moves from 35 km/h to 40 km/h the first second and from 40 km/h to 45 km/h the next second. What is the car acceleration?

Why can crevasses in glaciers only be 50 meters deep? A. Plastic flow occurs below that depth. B. Glaciers cannot be thicker that 50 Meters. C. Surges prevent plastic flow below that depth. D. Basal slip occurs below that depth.

What are the changes to Earth's surface that occur as a result of plate movement