According to the law of conservation of charge which statement can be true? A) A metal rod lost charge. B) A silk cloth gained charge. C) Charges are created from nothing. D) Charge moved from hair to a balloon.

Select the correct answer. What is the first sign of dehydration? A. Increased thirst B. Increased dizziness C. decreased urine D. decreased endurance Next Reset

How does wavelength change as frequency increases? A) Wavelength increases as frequency increases. B) Wavelength decreases as frequency increases. C) Wavelength is unaffected as frequency increases.

You have a fish aquarium with the dimensions of 55cmx100cmx80cm. What volume of water should you put?

The electromagnetic wave that delivers a cellular phone call to a car has a magnetic field with an rms value of 1.90 10-10 T. The wave passes perpendicularly through an open window, the area of which is 0.20 m2.

1, Condensation occurs when: water is released from plants ground water moves to the surface surface water changes into water vapor atmospheric water changes into precipitation 2, What happens to the precipitation that reaches land?

How do mountins building and volcanos relate to plate motion at convergent boundaries

A 20kg box is dropped 13m. how much work is done

Suppose a person whose mass is m is being held up against the wall with a constant tangential velocity v greater than the minimum necessary. Find the magnitude of the frictional force between the person and the wall

A ball is being rolled by a normal push of 1000N. it is opposed by friction which has a force of 0.3kN and air resistance which has a force of 23N. Calculate the resultant force.

Consider a Young's two-slit experiment in which the wavelength of light is 37% smaller than the distance between the slits.