What two characteristics are used to classify air masses

You are told that a wave has a wavelength of 450 x 10^-9 m and a frequency of 6.67 x 1014 Hz. Is it a sound wave? How do you know?

These are equal and opposite forces that do not cause change in position or motion. term:

What is the momentum of a 20 kg object traveling at a rate of 5 m/s

The board sandwiched between two other boards shown below weighs 87.5 n. if the coefficient of friction between the boards is 0.

Few girls can resist flattery

Voltage can exist without A. current. B. resistance. C. a closed circuit. D. all of these

During a football game, a receiver has just caught a pass and is standing still. Before he can move, a tackler, running at a velocity of 2.60 m/s, grabs and holds onto him so that they move off together with a velocity of 1.30 m/s.

What effect does an increase in temperature have on viscosity?

Aman tosses a jart upward with a velocity of 14.1 m/s a 60° angle

Describe accuracy, precision and best fit line.