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

Why is it important for people to avoid electric shocks?

Which statement best describes a risk associated with using radioisotopes in nuclear reactors? A Radioisotopes are very expensive and do not produce the amount of energy that coal and oil produce.

What happens when a boxer doesn't make weight?

Technician A says a special puller and installer tool is required to remove and install the vibration damper. Technician B says if the inertia ring on the vibration damper is loose, the damper must be replaced. Who is right?

In volleyball, how is the server determined?

Wave can be described as A. a continuous transmission of energy from one location to the next B. The disturbance of particles in an area C. The transmission of energy through individual particles D. The motion of particles in a medium

A germ is also called a microorganism or a microbe. True False

What is 1.33Ω plus 2Ω?

As a fire truck approached Mary, the pitch of the siren got higher. once the fire truck passed and moved away, the sirens pitch got lower. this change in pitch is because in the sound waves

Find the magnitude of the sum of these two vectors