A roller coaster slows as it travels up a hill

a) speed

b) velocity

c) acceleration

Two identical steel balls mounted on wooden posts initially have different amounts of charge, one with - 14uC and the other with - 2uC. the balls are allowed to touch then separated again. what is the final charge on each ball?

A star system in which one star blocks the light from another is call

Someone drops a 50 - g pebble off of a docked cruise ship, 70.0 m from the water line. A person on a dock 3.0 m from the water line holds out a net to catch the pebble.

What does not separate white light into colors of the visible spectrum

Which statement correctly describes the relationship between frequency and wavelength?

A lorry with a mass of 5000kg accelerates to overtake a caravan on the motorway. Its acceleration is 1.5m/s². What force must the engine be providing? You can ignore the effects of friction and air resistance

Norma kicks a soccer ball with an initial velocity of 10.0 meters per second at an angle of 30.0% if the ball moves though the air for 3.2 seconds what's the horizontal distance traveled by the ball

Suppose s (t) is the position of an object moving along a line at time t is greater than or equal to 0. What is the average velocity between the times t=a and t=b? What is the instantaneous velocity at t=a?

Estimate how long it would take one person to mow a football field using an ordinary home lawn mower. suppose that the mower moves with a 1-km/h speed, has a 0.5-m width, and a field is 360 ft long and 160 ft wide. 1 m = 3.281 ft.

Badri makes the table below to review the factors that affect the electric force between objects. Which change will correct the error in Badri's table?