How much of a 24-gram sample will remain undecayed after one half life

A wheel of diameter 138 cm has an axle of diameter 9 cm. A force 120 N is exerted along the rim of the wheel.

According to Newton's second law of motion, when the net force on a object is greater than 0, how is its mass related to its acceleration

9. The model of the universe that suggests that the sun is the center of the universe was first developed by A. Copernicus B. Brahe. C. Kepler. D. Ptolemy.

3 - (a) What is the period of rotation of Earth in seconds? (b) What is the angular velocity of Earth? (c) Given that Earth has a radius of 40,075 km at its equator, what is the linear velocity at Earth's surface?

Which term refers to large groupings of stars A. Nebulas B. Galaxies C. Binary Stars D. Star Clusters

what is a possible unit for the product VI, where V is the potential difference across a resistor and I is the current through the same resistor?

What is one basic need that both monkey and a tree have in common

Which statement is true about the centripetal force acting on a body moving at a constant speed in a circle? A. It has no centripetal force. B. It has a centripetal force that is directed radially and outward. C.

Which of the following astronomical bodies is the highest in hierarchy earth galaxy solar system star

The force is proportional to what measurement