Andrea was watching her brother in the ocean and noticed that the waves were coming into the beach at a frequency of 0.777778 Hz. How many waves hit the beach in 27 s? Answer in units of waves.

The charge density of a uniformly charged disk 0.420 m in diameter is 2.92 ✕ 10-2 C/m2. What is the magnitude of the electric field along the disk's axis at the following distances from its center?

Write the differences between evaporation and boiling? (AS1)

How do you measure velocity?

If a cat always lands on its feet, and buttered bread always lands butter side down, what would happen if you tied buttered bread on top of a cat?

What is the largest-aperture Earth-based telescope currently in use at visible wavelengths?

Imagine you are on a roller coaster, riding a skateboard, or running across the ball field. What are some clues that you are moving?

In vacuum, red light travels at a greater speed than blue light does. a. true b. false?

When the sun is directly overhead, a hawk dives toward the ground with a constant velocity of 5.35 m/s at 52.0° below the horizontal. Calculate the speed of its shadow on the level ground. M/s?

How do the tension of the cord and the force of gravity affect a pendulum? A. They are the competing forces that act on a pendulum as it swings. B. They are the two factors that affect the period of a pendulum. C.

What is an example of static friction