What does the negative sign in F = - kx mean?

If the mass of an object is 300kg and the applied force is 3900N, calculate the acceleration

When electric current flows through the metal element of a light bulb, electrical current energy is converted to

Wavelength is measured in hertz true or false?

A system absorbs 186 kj of heat and the surroundings do 110 kj of work on the system. what is the change in internal energy of the system? express the internal energy in kilojoules to three significant figures.

When an electron moves from a lower to a higher energy level

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.