You start to roll backwards down a hill on your bike, so you use the brakes to stop your motion. In what direction did you accelerate?

What happens to a magnetic field if the current carrying wire A has three times as many loops but the same current as the current carrying wire B? A. Wire A will have a lower magnetic field than wire B. B.

Calculate the escape velocity for Mars if its mass=0.12MEarth and the radius=0.55REarth. Show full solving process. V escape = (2GM/R) ^1/2 M = mass of planet R = radius of planet G = gravitational constant (6.67 x 10^-11 x m^3/kg x s^2)

A star becomes a red giant and its surface temperature cools from 6000 K to 3000 K. Its peak wavelength originally was 483 nm. What is its peak wavelength after it cools?

How does crater density relate to the moon's geologic history?

The difference between a hypothesis and an inference

A flashlight beam strikes the surface of a pane of glass (n = 1.50) at a 61° angle to the normal. what is the angle of refraction?

Why is there controversy to the opinion that human contribution of carbon dioxide to the atmosphere is cause warming

If the resistance of a circuit increases, that means that the current has to

One watt is equal to which of these values? 1 joule/hour 1 joule-hour 1 joule/second 1 joule-second

What are some of the benefits of learned optimism that have been found in research? O A. Fewer health problems O O B. All of these C. Making more money O D. A lower divorce rate