If systems interacts with objects outside itself. why would the momentum of the system change?

If you go out at exactly 9 p. m. each evening over the course of one month, the position of a given star will move westward by tens of degrees. what causes this motion?

True or False: As the mass of an object increases, the gravitational pull increases

A bus is traveling with a uniform acceleration of 2.75 meters/second2. If the initial velocity of the bus is 16.5 meters/second, what will its velocity be after 9.00 seconds?

Determine the deBroglie wavelength for an electron moving at 7.3 x 107 m/sec. A. 1.0 x 10-11 m B. 5.1 x 104 m C. 5.9 x 10-23 m D. 2.9 x 10-7 m

A 6.0-kg object moving 5.0 m/s collides with and sticks to a 2.0-kg object. after the collision the composite object is moving 2.0 m/s in a direction opposite to the initial direction of motion of the 6.0-kg object. determine the speed of the 2.

A 1500 kg car accelerates uniformly from rest to reach 10.0 m sin 5.00 s. Determine (i) the average power delivered by the engine.

What is 1/3 of 300

What geologic features might form at the surface of plate A?

Is it true that mollusks that live in water have lungs

Which is a true statement about waves? A They always travel in every direction at the same time. B. They travel at different speeds through different materials. c. They cannot travel through liquids or solids. D.