A wave has a speed of 2.2 kilometers per second (km/s), and a wavelength 2 points of 1.8 kilometers (km). What is the frequency of the wave.

What are the theoretical properties of a gas at a temperature of 0 kelvin?

The image shows a pendulum in simple harmonic motion the pendulum starts at a and swing to e

The number of passengers who arrive at the platform of a subway station for the 10 am train is a random variable with a mean of 120 and a variance of 16. find the lower bound of the probability that there will be between 100 and 140 passengers (round off to second decimal place).