A car travels south on a highway for two hours at 90 km/hr. the car then reverses and drives for three hours at 70 km/hr. what is the car's change in position relative to where it started?

A 149 turn 149 turn circular coil of radius 2.15 cm 2.15 cm is immersed in a uniform magnetic field that is perpendicular to the plane of the coil. Over an interval of 0.165 s 0.165 s, the magnetic field strength increases from 50.5 mT 50.5 mT to 95.

What is the composition of earth's Modern atmosphere?

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Why is it called a compound light microscope?

What would occur if the index of refraction of a material was less than n=1? The speed of light would increase to a speed larger than the maximum speed of light in a vacuum. The light wave would not bend at all though the material.

Which theory was first proposed by Albert Einstein? A. the theory of special relativity B. the theory of universal gravitation C. the theory of inertia D. the theory of radioactivity ... the answer is A i just found out

For each of the following, describe the relationship as directly or inversely proportional: a) wavelength vs. frequency b) wavelength vs. energy c) frequency vs. energy ... ?

Can hand sanitizer be used as rubbing alcohol

Two objects experience a 12 N electrical force between them. What force will the objects experience if the distance between them is doubled?

a submarine moving directly upward in the water at constant speed. The weight of the summer and it is 500,000 N. The submarines motors are off. The magnitude of the buoyant force acting on the submarine is