Why does a fluid become less dense when it is heated?

An alternating current consists of charges that: a.) turn on and off repeatedly. b.) move back and forth in a circuit. c.) flow in one direction only. d.) flow in one direction in some devices and change direction in others.

Position of a moving body? 15. A car travels a certain distance with a speed of 50 km. p. h. and retums with a speed of 40 km. p. h. Calculate the average speed for the whole journey.

A starlike object seen on deep sky photographs coincides with an intense radio source and has a spectrum in which the characteristic lyman pattern of hydrogen spectral lines has been shifted from the ultraviolet to the visible spectral range.

What is the value of the composite constant (gmer2e), to be multiplied by the mass of the object mo in the equation above? express your answer numerically in meters per second per second?

Under certain conditions, sandstone will transform into quartzite. What type of rock is quartzite?

What is the most advanced life form on earth

Which EM wave is about the size of humans?

Describe how the Catapult works?

Newton's third law of motion states that the force pair acting on different objects consist of two forces that

While working on her science fair project Venus connected a battery to a circuit that contained a light bulb. Venus decided to change the light bulb to a higher resistance, but she wanted to keep the current the same.