Which trends is indirectly proportional to effective nuclear charge

A wagon is pulled along level ground by exerting a force of 26 26 pounds on a handle that makes an angle of 30 degrees 30° with the horizontal. How much work is done pulling the wagon 90 90 feet?

You are waiting in line to use the diving board at your local pool. While watching people dive into the pool from the board, you realize that using a diving board to spring into the air before a dive is good example Newton's third law of motion.

What is a vector quantity? A. A quantity direction only B. A quantity with magnitude and direction C. A quantity with magnitude only D. A quantity with no magnitude and no direction?

A student states that the kinetic energy of liquid molicules decreases as a liquid freezes. Is the student correct? Explain your answer.

Why do some devices use batteries and other devices use a wall outlet for power?

A car accelerates from 30 m/s to 50 m/s in 2 seconds. Calculate the cars acceleration

What color of light has the shortest wavelength

What was his average swimming speed during the second half of the race if he tied the record, which was at an average speed of 2.05 m/s?

Objects A and B have equal amounts volumes and are both traveling at 25 miles per hour. Object A is much denser than Object B. Which object has a greater amount of force and why

An airplane with a total mass of 850 kg has an engine malfunction, causing it to provide a constant horizontal force of 4000 N. The pilot, who has a mass of 80 kg, decides to eject from the airplane.