44.2 cm + 0.123 cm = cm

Three pendulums all have the same length and start from the same height. The first pendulum is very light and has a mass of 67 g. The second pendulum has a mass of 1.5 kg. The final pendulum has a mass of 3.3 kg.

Can an object be increasing in speed as it's acceleration decreases?

Which statement about atomic structure is incorrect? A) Protons are located in the nucleus. B) Protons and electrons have the same mass. C) Protons and electrons have opposite charges.

Over time, how do the matter and energy in a system naturally change? A) their entropy increases B) their energy increases C) they do more work with less heat D) they become more orderly

What is the acceleration due to gravity of a feather? Is it smaller than that of an iron ball?

Luke and Carrie are driving down a straight section of the interstate at 70 mph in Luke's new convertible. Carrie is drinking a soda in the passenger seat.

A force produces power p by doing work w in a time t. what power will be produced by a force that does six times as much work in half as much time?

A batter hits a baseball with a bat. The bat exerts a force on the ball. Does the ball exert a force on the bat?

In a nuclear power plant, the temperature of the water in the reactor is above 100°C because of what?

Determine the total mechanical energy of a 250 g baseball if it has a velocity of 30 m/s when it leaves the pitcher's hand 1.2m above the ground.