A stone is dropped from a height of 7.70 m how fast is it going when it is 5.25 m above the ground

What scientific achievements was newton known for?

A ski lift carries people along a 220-meter cable up the side of a mountain. Riders are lifted a total of 110 meters in elevation. What is the idea mechanical advantage of the ski lift?

Write a short description/Summary about your galaxy, and pose two questions you have about the galaxy

a model rocket climbs 200 m in 4 seconds. if was moving 10 m/s to begin with, what is it's final velocity?

Technician A says that a power-assisted brake system reduces stopping distances compared to a nonpower-assisted brake system. Technician B says that the power-assisted brake system reduces the force that the driver must exert on the brake pedal.

A car weighing 15,000 N is on hydraulic lift platform measuring 10m2. What is the area of the smaller psition if a force of 1,100n is used to lift the car?

What are some household items that demonstrate thermodynamics

The position of a certain airplane during takeoff is given by x=1/2 * bt2, where b = 2.0 m/s2 and t = 0 corresponds to the instant at which the airplane's brakes are released at position x = 0.

What studies outer space, the solar system and objects in it

Which of these is the most likely reason why the Steady State Theory of origin of the universe has been rejected?