A rock with a mass of 1000 kg falls to the earth. what would the force be?

What does friction oppose

A plane comes out of a power dive, turning upward in a curve whose center of curvature is 1300 m above the plane. The plane's speed is 260 m/s. a. Calculate the upward force of the seat cushion on the 100 kg pilot of the plane. b.

Consider three drinking glasses. All three have the same area base, and all three are filled to the same depth with water. Glass A is cylindrical. Glass B is wider at the top than at the bottom, and so holds more water than A.

How can a driver best be prepare to enter sharp curves

A 0.09-kg lead bullet traveling 182 m/s strikes an armor plate and comes to a stop. If all of the bullet's energy is converted to heat that it alone absorbs, what is its temperature change

Teens realize that things may be "shades of gray" after they enter Piaget's social stage. identity crisis stage. menarche stage. formal operational stage.

Technician A says that fractured rods have a unique mating surface and that only the cap that was fractured is the one that will fit that rod. Technician B says that a powdered metal rod is less expensive, lighter, and as strong as a forged rod.

What is the expected wavelength (in cm) of 10.5 ghz microwaves in free space?

There are 5,280 feet in 1 mile and 12 inches in one foot. How many inches are in a mile?

An anion is an atom that has lost electrons. True or False?