Two objects each have masses of 9,000,000 kg and are 1 meter apart from each other. What's the force of gravity between them?

An astronaut in space cannot use a scale or balance to weigh objects because there is no gravity. but she does have devices to measure distance and time accurately. she knows her own mass is 77.4 kg , but she is unsure of the mass of a large gas canister in the airless rocket. when this canister is approaching her at 3.50 m/s , she pushes against it, which slows it down to 1.30 m/s (but does not reverse it) and gives her a speed of 2.60 m/s . what is the mass of the canister?

Calculate a pendulums frequency of oscillation (in hz) if the pendulum completes one cycle in 0.5s.

The specific individuals, groups, and institutions that enable socialization to take place.