How do wavelength, frequency, and energy relate?

If 20 J of work is done in 4 seconds, what is the power?

A box is on a ramp that is at angle θ to the horizontal. As θ is increased from zero, and before the box slips, do the following increase, decrease, or remain the same: (a) the component of the gravitational force on the box, along the ramp, (b) the

Which of the following scientists did not support the wave motion of light? A. Fresnel B. Maxwell C. Newton D. Arago

When the net force that acts on a hockey puck is 12 n, the puck accelerates at a rate of 48 m/s2. determine the mass of the puck?

According to Archimedes principle, if an object s weight is greater than the weight of the fluid displaced, the object will float? True or false?

As you turn up the volume on your mp3 player you are increasing

Which event would lead to an overpopulation of a species within a food web A. The grass was eaten by the rabbits stopped growing B. The population of wolves who ate the rabbits decreased C. The grasshopper were affected by the diseased grass D.

Which of the following is true A) land heats less rapidly than water B) land heats more rapidly than water C) land reaches higher temperatures than water D) both b and c

What is the upper limit to the mass of a neutron star beyond which neutron degeneracy pressure is unable to withstand the force of gravity and the neutron star is crushed out of existence into a black hole?

What happened to the test charge when brought near another positive charge, and how did you use this fact to score a goal only using positive charges? Explain for both the practice charge and more difficult levels.