Radium-214 decays in an alpha decay.

a. what is the mass number of the daughter isotope

The law of suggests that the orbit of planets is not circular but.

A ball is rolled continuously up a hill, another bounces around a basketball court for awhile after being dropped by a child, a third ball falls to the earth, and a fourth rolls down a hill.

As a ball falls freely toward the ground, its total mechanical energy (1) decreases (2) increases (3) remains the same

What is my favariot nfl football team

Which statement is the most appropriate conclusion for David to write?

What is acceleration? a. change in velocity/change in time b. change in distance/change in time c. change in mass/change in volume d. change in pressure/change in time

Brittany stands at rest on a skateboard. the combined mass of brittany and the skateboard is 62 kg. dave tosses a 3.7-kg pumpkin to brittany, and when she catches it, she and the skateboard begin to roll backward with a speed of 0.16 m/s.

The maximum restoring force that can be applied to the disk without breaking it is 40000 n. what is the maximum oscillation amplitude that won't rupture the disk

Which is a vector quantity speed or velocity

With a naked eye your are unlikely to see a "blank" in your lifetime. A - Comet. B - Shooting Star. C - Meteor. D - Planet.