During a race, a runner runs at a speed of 6 m/s. Four seconds later, she is running at a speed of 10 m/s. what is the runners acceleration? show your work.

In a video game, a ball moving at 0.6 meter/second collides with a wall. After the collision, the velocity of the ball changed to - 0.4 meter/second. The collision takes 0.2 seconds to occur.

The overgrowth of algae on the surface of this water is caused by

Which of the following is equal to the boyant force of a rock placed in a beaker of water? A) volume of the displaced fluid B) weight of the displaced fluid C) volume of the rock D) weight of the rock

If you put a coin in a bottle and then stop the opening with a cork. how can you get the coin out of the bottle without pulling out the cork or breaking the bottle?

An airplane travels 80 m/s as it makes a horizontal circular turn which has a 0.80-km radius. What is the magnitude of the resultant force on the 75-kg pilot of this airplane?

Why is a ehephent so big is it just big or are we so small?

Which of the following traits might be considered an adaptation fora rabbit living in the Arctic?

What is Newtons 2nd law of motion?

A truck is using a hook to tow a car whose mass is one quarter that of the truck. If the force exerted by the truck on the car is 6000 N, then the force exerted by the car on the truck isa. 1500 Nb, 24000 Nc, 6000 Nd, 12000 N

A car traveling at a speed of v can brake to an emergency stop in a distance x. assuming all other driving conditions are all similar, if the traveling speed of the car doubles, the stopping distance will be