Which of the following correctly gives the relationship between linear speed v and angular speed w of a body moving uniformly in a circle of radius r?

Ascientific blank must be testable and capable of being proven false?

Contrast the force of gravity between these pairs of objects: 1-kg mass and a 2-kg mass that are 1 m apart; a 1-kg mass and a 2-kg mass that are 2 m apart; and two 2=kg masses that are 1 m apart. i dont understand.

Suppose you hit your hand against the edge of table. using newton’s third law of motion why does my hand hurt? explain