What forces are acting on matter through contact or no contact

Which blow from west to east, following the boundary between hot and cold air?

Determine whether you are accelerating as Earth rotates once every 24h

A ball is rolled uphill a distance of 5 m before it slows, stops, and begins to roll back. The ball rolls downhill 9 m before coming to rest against a tree. What is the magnitude of the balls displacement? A. 4 meters B. 9 meters C. 14 meters D.

Some compounds are classified as acids or bases. The ph scale shows how acidic or how basic these compounds are the lower the ph the more acidic a compounds is the higher the ph the more basic it is.

A cylindrical can holds 1 liters (1000 cm^3) of liquid. How should the height and radius be chosen to minimize the amount of material needed to manufacture the can?

Ball A has a mass of 0.200 kilograms. Ball A, traveling at a velocity of 2 meters/second in the + x direction, hits a stationary ball B of the same mass. After the collision, ball B bounces off at a positive angle with respect to the + x-direction.

10. If the wavelength of the light is decreased, the width of the central maximum in the diffraction pattern will B) increase A) decrease C) remain the same

Materials with a density__water will float in water

A 0.5 kg ball is thrown horizontally towards a wall with a speed of 10 m/s. The initial velocity is chosen to be the positive x - direction for this question.

Does heat rise or fall