Two object gravitationally attract with a force of 20N. if the distance between the two object centers is doubled, then what is the new force?

Laser light is high powered, directional, coherent, and has a double wavelength. true or false.

What evidence did Alfred Wegener use to support his theory of continental drift?

Which statement is correct? Select one: A. Light, in a vacuum, travels at the same speed even if the light source is moving. B. Light given off from a moving source will travel faster in a vacuum. C.

After landing on an unfamiliar planet, a space explorer constructs a simple pendulum of length 54.0. The expl? After landing on an unfamiliar planet, a space explorer constructs a simple pendulum of length 54.0.

Which describes Einstein's idea of space and time? Time and space are relative. Time and space are absolute. Time is relative and space is absolute. Time is absolute and space is relative.

Solve the following automotive-services problem. Remember I = E/R, where (I = amps) against resistance (R = ohms) in the electric field (E = volts.). Resistance = 0.2 ohm Current = 30 amps Voltage = 6 (T/F)

1: Explain how you can use Boyle's Law to determine the new volume of gas when its pressure is increased from 270 kPa to 540 kPa? The original volume of gas was 1 L. Assume the temperature and number of particles are constant.

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If a skater who is spinning pulls her arms in so as to reduce her rotational inertia by half, by how much will her angular momentum change? by how much will her rate of spin change?

What an object is made up of and the color of light that strikes it determine the A) apparent color of object B) transparency of the object C) opacity of the object D) translucence of the object