Which force resists the sliding of two surfaces that are touching?

Compare superior and inferior

You are in a car driving 60 mph without a seat belt. The driver needs to slam on their breaks very hard. At that moment, you continue to move forward and hit the seat in front of you hurting your face.

A softball hit by a bat accelerates at 2729 m/s2. If the net force acting on the softball is 508 N, what is the softball's mass? Round your answer to the nearest 0.001. Do not add units.

How old can you be to follow the food guide pyramid

How do astronomers think Jupiter generates its internal heat? A) radioactive decay B) internal friction due to its high rotation rate C) chemical processes D) nuclear fusion in the core E) by contracting, changing gravitational potential energy into

When a siren is approaching you, how does the wavelength of the waves reaching you compare to the actual wavelength that the siren emits?

In a harbor, you can see sea waves traveling around the edges of small stationary boats. Why does this happen?

Correct unit of speed

Technician A says that for best results, loosen the fastener immediately after spraying it with penetrating oil. Technician B says that rusted fasteners may be loosened by tapping with a hammer. Which technician is correct? a. technician A only b.

A roller coaster track is 3,000 meters long. It takes 100 seconds to travel once around the roller coaster. Is the velocity constant throughout the trip? Explain.