Which has more momentum: a 30 kg bicycle moving at 10 m/s or a 300 kg car at rest?

A bicycle

B car

c they have the same momentum

When applying the process of science which of theseis tested 1. a question, 2. an observation, 3. a conclusion, 4. a prediction

Consider your moment of inertia about a vertical axis through the center of your body, both when you are standing straight up with your arms flat against your sides, and when you are standing straight up holding your arms straight out to your sides.

If 15 N of force are applied to a cart to move it a distance of 5m, how much work is done on the cart

Why is net force a vector sum A. All forces have direction and magnitude B. Forces can only be attractive C. All forces are contact forces D. There are four fundamental forces

If the cross-sectional area of a wire is decreased while all other factors remain the same, how will the resistance change? A. It will increase B. It will decrease. C. It will go to zero. D. The cross-sectional area does not affect the resistance.

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