Using a cathode ray tube, Thomson confirmed that

atoms must have an overall positive charge.

atoms are made of particles that have a negative charge.

electrons in atoms must have varying amounts of energy.

electrons are only found in the nucleus.

a 5.0 kg tool box is raised from the ground by a rope. if the upward acceleration of the bucket is 2.5 m/s^2, find the force exerted by the rope on the tool box. acceleration due to gravity is 9.8 m/s^2

Kepler discovered that planets move faster when they are closer to the sun. Which scientist discovered the reason they move faster? a. Brahe b. Copernicus c. Newton d. Ptolemy

Ina shoots a large marble (Marble A, mass: 0.08 kg) at a smaller marble (Marble B, mass: 0.05 kg) that is sitting still. Marble A was initially moving at a velocity of 0.5 m/s, but after the collision it has a velocity of - 0.1 m/s.

Astronomy question, what keeps supernova explosions from being seen?

What happens when the wire coil of a generator spins in the generators magnetic field

What units must be used to express the temperature in the equation for the ideal gas law? explain?

Which region of the Sun is typically about 6,000 C?

How well does the infographic ""Plastics in the Ocean"" present a solution to the problem it describes?

Which of the following would be a good question that could be scientifically investigated? what is the best advice a parent can give a child what is the most appropriate number of dogs per household do cherry popsicles freeze slower than orange

Formulas (equations) : A = 3x and B = 5x + 1 As x increases, does A or B go up faster? if x=0, then A=? if x=1 then B=?