How long have humans been migrating?

А

2,000 years

about 200,000 years

about 60,000 years

D

1,000 years

The period of an ocean wave is 4 seconds. What is the waves frequency?

How does Coulomb's law relate to test charges?

According to Newton's second law, the acceleration of an object depends on its and the amount of applied to it.

How does the tide cycle affect erosion along a sea coast?

A (n) 5.77 g bullet is fired into a (n) 2.32 kg ballistic pendulum and becomes embedded in it. The acceleration of gravity is 9.8 m/s 2. If the pendulum rises a vertical distance of 7.15 cm, calculate the initial speed of the bullet.

Your car travels 600 miles in 6 hours. You stop the car for lunch for 1 hour and then you continue on your trip for another 14 miles and finish the entire trip in 8 hours. What was your car's average speed while you were driving?

Speed is a vector quantity

The observation location A is located at m. The conventional current running through the wire is 7.5 amperes. In this exercise you will calculate the magnetic field at the observation location due only to segment 4 of the wire.

The wavelength of a light wave can be used to measure which of the following? A. The direction the wave is traveling B. How many photons the wave contains C. How much energy the wave has D. How high the top of the wave is

Sound 1 has an intensity of 38 W/m2. Sound 2 has an intensity level that is 2.5 dB greater than the intensity level of sound 1. What is the intensity of sound 2?