If the speed of a wave doubles while the wavelength remains the same, what happens to the frequency? 1. the frequency doubles. 2. cannot be determined 3. the frequency remains the same. 4. the frequency reduces by half.

Which statement best describes the relationship between activation energy and rate of reaction? Increasing the activation energy can increase the rate of a reaction. Decreasing the activation energy can increase the rate of a reaction.

Which two elements have similar characteristics?

Jana lifted a 200-newton weight over her head to a distance of 2 meters above the ground. How much work did she do?

When a rattlesnake strikes, its head accelerates from rest to a speed of 28 m/s in 0.65 seconds. Assume for simplicity that the only moving part of the snake is its head of mass 170 g.

The height h (in feet) of an object shot into the air from a tall building is given by the function h (t) = 650 + 80t - 16t2, where t is the time elapsed in seconds. (a) Write a formula for the velocity of the object as a function of time t.

Which force keeps you near earths surface?

Name one process that requires a force in the human body.

Which describes the electric forces inside an atom

Why can radio telescopes be used 24 hours a day?

How do you find mass, volume and density? Any formulas?