Which claim about the universality of gravity is not supported by evidence? A. Any two objects that have mass also have a force of gravity acting between them, no matter how far apart they are.

B. The gravitational force between two objects depends only on their masses.

C. The gravitational force between two objects increases if mass is added to one object.

D. The gravitational force between two objects increases if the objects move closer together.

Inside of a windmill or a dam is a that is used to transform one type of energy into electrical energy. a. motor b. generator c. transformer d. power pack

Arunner is jogging at a steady 3.6 km/hr. when the runner is 2.9 km from the finish line, a bird begins flying from the runner to the finish line at 14.4 km/hr (4 times as fast as the runner). when the bird reaches the finish line, it turns around and flies back to the runner. even though the bird is a dodo, we will assume that it occupies only one point in space, i.e., a zero-length bird. how far does the bird travel? (b) after this first encounter, the bird then turns around and flies from the runner back to the finish line, turns around again and flies back to the runner. the bird repeats the back and forth trips until the runner reaches the finish line. how far does the bird travel from the beginning? (i.e. include the distance traveled to the first encounter)

Ways that industry and agriculture use physical properties to separate substances