A ball is rolled uphill a distance of 3 meters before it slows, stops, and begins to roll back. the ball rolls downhill 6 meters before coming to rest against a tree. what is the magnitude of the balls displacement?

What happens to matter when we add or take away heat energy?

An electric generator contains a coil of 99 turns of wire, each forming a rectangular loop 73.9 cm by 34.9 cm. The coil is placed entirely in a uniform magnetic field with magnitude B = 2.96 T and initially perpendicular to the coil's plane.

A solid wood door 1.00 m wide and 2.00 m high is hinged along one side and has a total mass of 45.0 kg. Initially open and at rest, the door is struck at its center by a handful of sticky mud with mass 0.

How does a stars life begin?

With a frequency of 500 hz, what is the period of a wave

Who was the first person to observe a sign of molecular motion?

sled of mass m is given a kick on a frozen pond. The kick imparts to it an initial speed of 1.90 m/s. The coefficient of kinetic friction between sled and ice is 0.110. Use energy considerations to find the distance the sled moves before it stops.

Which of the following represents a heterygous genotype? A-YY B-yy C-Y^H Y^H D-Yy

How many photons are absorbed during the dental x-ray?

A positively charged glass rod attracts object x. The net charge of object x