Recent content by Noein

Bingo

Once the electric force is calculated, it must be equal to the gravitational force since the charge is floating. What formula is used to calculate the gravitational force acting on a mass?

Which formula can be used to find the strength of the electric force due to the field?

The usual sign convention for thin lenses is such that the image distance is negative if the image is in front of the lens.

Right. The 2.0 cm figure is only used to determine the spring constant.

Some guiding questions that may help: 1. What is the magnitude and direction of the magnetic field at a point 4.5 cm above the wire? 2. What formula is used to calculate the force acting on a moving charge in a magnetic field?

The speed wouldn't be the same all along the track. Tarzan accelerates down the hill and decelerates up the ramp.

Check your expression for "h."

There is one thing; it looks just like a typo though: This: a = [(1/2)(0-2.0)2] / 1.5 m should be written like this: a = [(1/2)((0 m/s)^2-(2.0 m/s)^2)]/1.5 m The answer isn't changed, though.

Conservation laws ring a bell?

If the ball were simply dropped from a height of 1.19 m, how long would it take to fall?

Check your units.

The denominator should be 2m, since the deuterium is twice as massive as the hydrogen.

Halfway to the equilibrium position would be half the amplitude.

"Direct proportion" means that as one variable increases, the other increases (more voltage = more current). "Indirect proportion" means that as one variable increases, the other decreases (more resistance = less current).