A person runs at a constant speed around a 100m diameter circular track and completes each lap in 60 sec. What is the magnitude of the runner's average velocity for one fourth of a lap?

The distance a softball is pitching from mound to the batter is

What is the distance between ground to the lowest clouds?

Write a short story about a time when you had to overcome the force of gravity to get something done

Cracking an egg is what type of energy

A capacitor consists of a set of two parallel plates of area a separated by a distance d. this capacitor is connected to a battery that maintains a constant potential difference between the plates.

A linearly-polarized electromagnetic (EM) wave has an electric field with amplitude 1000 V/m. You hold a a linear polarizer in front of it and rotate the polarizer so that all of the EM wave is blocked. You then rotate the polarizer 30 degree.

Let y'=4 x. find all values of r such that y = rx^{2} satisfies the differential equation. if there is more than one correct answer, enter your answers as a comma separated list.

What are the starting materials for nuclear fission

Why is it possible to throw a 0.145 kg baseball much further than a 7 kg bowling ball?

What is the name of the force that opposes or slows down the motion of objects