A train travels 78 kilometers in 2 hours, and then 60 kilometers in 3 hours. What is its average speed?

One charge is decreased to one-third of its original value, and a second charge is decreased to one-half of its original value. How will the electrical force between the charges compare with the original force?

Starting from rest, how long does it take a moving man to reach a velocity of 5 m/s if his acceleration is + 1.75 m/s2?

How calculate the mass of an object given its acceleration and net force acting on it

How a diode can act as a capacitor?

Which of the following statements indicates that the client is at risk for an electrical shock at home? 1. "I had to cut off the third prong on the electrical plug so that it would fit in the extension cord." 2.

A 5.1 kg black bear cub weighs 49.98 N. The cub is carried by its mother up into the safety of a white pine tree.

Which location is associated with persistent upwelling of cold water to the ocean surface?

What type of electromagnetic radiation is associated with the peaks in this spectrum chem 237?

Why is it necessary to eliminate absolutely all invasive fire ant colonies to eradicate the invasive population? a. Every colony has a major impact on native flora and fauna. b. Because the last colony found is the one housing the invasion's queen.

Imagine a particular exoplanet covered in an ocean of liquid methane. At the surface of the ocean, the acceleration of gravity is 6.20 m/s2, and atmospheric pressure is 7.00 ✕ 104 Pa.