An x-ray with a wavelength of 3.5 * 10^-9 m travels with a speed of 3.0 * 10^8 m/s. What is the frequency of this electromagnetic wave?

A. 9.52 * 10^-1 Hz

B. 8.57 * 10^16 Hz

C. 1.17 * 10^-17 Hz

D. 1.05 Hz

This is the portion of the electromagnetic spectrum that has a frequency just above that of visible light.

If one object has a positive charge and another has a negative charge, the object will be ... A. Cancel B. Attract C. Mix D. Repel

What types of materials can make up sediments?

A wave has a wavelength of 11 mm and a frequency of 6 hertz. What is its speed?

Which statement is true concerning the evidence for black holes? Scientists can see black holes with powerful telescopes. Scientists can see the effect of black holes on nearby stars. Scientists can see trails left in space by black holes.

What color does Indigo turn things?

Which equation expresses the conservation of mechanical energy in a system that involves kinetic energy, gravitational potential energy, and elastic potential energy?

Which of these is an example of temperature changing over time? A. a pan cools off on the stove B. a frozen dinner sits in the freezer C. a mug is at room temperature on the counter D. two glasses of water are filled from the tap and mixed together

A syrup added to an empty container with a mass of 115.25g. When 0.100 pint of syrup is added, the total mass of the container and syrup is 182.48g. Determine the density ... ?

MOST high schools teach biology, then chemistry, then physics. What do you see as some of the disadvantages of the traditional sequence to both students and teachers.