A block of mass 20 kg sits on a ramp with an angle of 31 degrees above the horizontal. Assuming no friction, how fast will the block accelerate down the ramp?

7.89 m/s^2

5.34 m/s^2

2.98 m/s^2

4.17 m/s^2

If total (PE + KE) is conserved:

What are the things on top of the titanic called?

Calculate the frequency of a light wave that has a wavelength of 3.25x10-6 m

Explain why it is easier to climb a mountain on a zigzag path rather than one straight up the side.

What would happen if you touched the knob of a positively charged electroscope with a negatively charged object

Which statement is correct about gasoline when it is burned? Heat energy is created by the gasoline. The total energy of the gasoline decreases. Chemical energy in the gasoline is destroyed. Chemical energy is transformed into heat energy.

The tilt of the Earth's axis of rotation changes over a period of 41,000 years. Which of these statements best predicts a long term effect of the changes in the tilt of the Earth's axis of rotation? a. The Earth's climate would change. b.

What do keratinized cells form?

Explain why Planck's introduction of quantization accounted for the properties of black-body radiation.

How and which waves travel either through a medium or a vacuum?