A student pulls a cart across a horizontal floor by exerting a force of 50 newton at an angle 30

Which statement correctly describes the formation of an electric current? A resistance causes electric charges to move from lower to higher potential. A voltage causes electric charges to move from lower to higher potential.

A large tuning fork has a lower or higher frequency than a small tuning fork?

12. We've learned that velocity is a vector quanuty. Is force also a vector quantity? Why or why not?

In a physics laboratory experiment, a coil with 200 turns enclosing an area of 11.8 cm^2 is rotated during the time interval 4.

In space, a stationary light source emits green light at a frequency of 5.50*10^14Hz. A spaceship approaches the light at a speed 1.50*10^7m/s. What is the frequency of the light that is perceived aboard the spaceship. (the speed of light is 3.

Molecules at room temperature move freely. What happens to the molecules when heat is removed until it freezes? Molecules group together Molecules slow down and contract Molecules speed up and expand Molecules move freely

A spring is used in a lab. It is vibrated at different frequencies and the wavelength is recorded. Using the graph of the data, what is the relationship found between frequency and wavelength? A) Frequency and wavelength are inversely related.

How do you describe the frequency of waves perceived by the observer from the moment the source appears to the moment it disappears?

What causes the stars to appear to move across the night sky?

Two waves collide and the temporary combined waves that results is smaller that the original wave. which term describes this interaction? A. destructive interference B. standing wave formation C. diffraction D. constructive interference