When galaxies move away from us they appear to have a "red shift" in color. Explain why this happens.

Define capillarity?

Given the indices of refraction and of material 1 and material 2, respectively, rank these scenarios on the basis of the phase shift in the refracted ray. (n1 air=1.00 n2 water=1.33) (n1air=1.00 n2 quartz=1.46) (n1 water=1.33 n2 air=1.

Imagine you are a geologist on a trip through the largest sphere on the planet. Identify the name of the sphere. As you travel through the parts of the sphere, identify and describe its three parts.

There is a clever kitchen gadget for drying lettuce leaves after you wash them. it consists of a cylindrical container mounted so that it can be rotated about its axis by turning a hand crank.

Which of the following are true (choose all that apply) ? Sound can travel through a vacuum. - Sound can travel through water. Light can travel through a vacuum Sound can travel through air.

Why does a collision with an airbag cause less damage than a collision with a steering wheel

A car weighing 15,000 N is on hydraulic lift platform measuring 10m2. What is the area of the smaller psition if a force of 1,100n is used to lift the car?

What are some household items that demonstrate thermodynamics

The position of a certain airplane during takeoff is given by x=1/2 * bt2, where b = 2.0 m/s2 and t = 0 corresponds to the instant at which the airplane's brakes are released at position x = 0.

What studies outer space, the solar system and objects in it