Explain why the moon looks different almost every night?

A car moves 100 meters in 6 seconds. Calculate the car's speed. d= t= v=

An electron is moving at 7.4 x 10^5 m/s perpendicular to a magnetic field. It experiences a force of - 2.0 x 10^-13 N. What is the magnetic field strength?

A parallel-plate capacitor connected to a battery becomes fully charged. After the capacitor from the battery is disconnected, the separation between the plates of the capacitor is doubled in such a way that no charge leaks off.

An object is traveling at a constant velocity of 15 m/s when it experiences a constant acceleration of 3.5 m/s2 for a time of 11 s. What will its velocity be after that acceleration?

Why might you want to use a single fixed pulley? A) to reduce the weight of lifted objects B) to raise or lower heavy objects C) to raise or lower lightweight objects D) to reduce the force needed to raise objects

The density of mercury is 13.5 g/cm3 g / c m 3 . Part A Part complete What is this value in kilograms per cubic meter? 1.35*104 kg/m3 k g / m 3

Which type of force can cause objects to attract or repel each other? a. frictional force b. nuclear force c. electrical force d. gravitational force

Which of the following is not the name of a space station that was in orbit around Earth?

Mercury was named after the roman god of speed why is it an appropriate name for the planet

The following currents are measured in the same direction in a three-branch parallel circuit: 250 mA, 300 mA, and 800 mA. What is the value of the current into the junction of these three branches?