If the speed of light in a sphere is 2 * 108 m/s, its index of refraction is

Listed following are three possible models for the long-term expansion (and possible contraction) of the universe in the absence of dark energy.

What word describes the forces acting on the car

A block whose weight is 45 N rests on a horizontal table. A horizontal force of 36 N is applied to the block. The coefficient of kinetic and static friction are 0.65 and 0.42, respectively.

The friction force between a bag and the floor is 4 N. what is the net force acting on the bag? What is the acceleration of the bag?

Which type of energy is stored in a stretched string on the bow in the following figure

How much kinetic energy does a moving 6 kg object have If It moves with a velocity of 3 m/s?

List the different types of electromagnetic readiation (waves) in order from shortest wavelength to longest wavelength

Which way does the Coriolis effect deflect objects in the Northern Hemisphere To the south To the right To the left To the north

Let T be a linear transformation from a vector space V with dimension 11 onto a vector space W with dimension 7. What is the dimension of the nullspace of T?

What is the fundamental unit for measuring mass in the metric system?