a concave mirror forms a real image 4 times as tall as the object placed 10 cm in front of mirror. find the position of image and radius of curvature..

Arrange the images in order to show how lake-effect snow occurs.

Aball is thrown horizontally from a cliff at 8m/s .in what direction is the ball moving 2s later?

Abumper car with a mass of 250 kg is traveling at a speed of 4 m/s. this bumper car collides and sticks to a second bumper car with a mass of 250 kg, which is initially at rest. what is the final speed of these two bumper cars after the collision, assuming they remain stuck together?