When comparing and contrasting EM and mechanical waves, which is true.

The height of a flagpole is 8.5 meters tall. If the length of the meter stick shadow is 1.5 meters long, what would be the the length of the flagpoles shadow?

What kind of charge does an isotope have?

A mouse runs along a baseboard in your house. The mouse's position as a function of time is given by x (t) = pt 2+qt, with p = 0.36 m/s2and q = - 1.10 m/s. Determine the mouse's average speed between t = 1.0 s and t = 4.0 s.

Which term defines the process of layers and layers of rock forming on large areas of the earth over time? A. stratification B. conglomeration C. lithification D. crystallization

Remy wonders if the height of the mountain has anything to do with the eventual size of the tsunami wave. How should Remy test this? A. Cause avalanches on several different mountains and see how large each resulting tsunami is. B.

A diffraction grating is illuminated simultaneously with red light of wavelength 670 nm and light of an unknown wavelength. The fifth-order maximum of the unknown wavelength exactly overlaps the third-order maximum of the red light.

Four soccer players are running down the field at the same speed. Player 1 weighs 145 lbs and is running toward the north goal, player 2 weighs 175 lbs and is running toward the south goal, player 3 weighs 155 lbs and is running toward the south

Pure water has a hydrogen ion concentration of 1 x 10 (-7) M and a ph of 7. A student measures a basic solution and finds that it has a hydrogen ion (H+) concentration of 1 x 10 (-3).

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A train travels 53 kilometers in 4 hours, and then 90 kilometers in 3 hours. What is the average speed