If you weigh 100 kilograms on Earth, would your mass be 100 kilograms too (on Earth) ?

The total energy in a closed system remains the same or changes as energy changes forms

What machine will work best to raise a bucket from the well

Two parallel metal plates are at a distance of 8.00 m apart. The electric field between the plates is uniform directed towards the right hand and has magnetic field of 4.00 N/C. If an ion of charge + 2e is released at rest at the left hand plate.

You see a marble sign. Its letters are too worn to read. What caused this?

A 0.10 newton spring toy with a spring constant of 160 newtons per meter is compressed 0.05 meter before it is launched. When released the spring toy pops up and reaches a maximum height of 1.5 meters.

How to find final velocity given mass and initial velocity only?

What charge do electrons have? Negative Positive Neutral

What do you suppose would cause an atom to lose an electron?

Calculate the average speed of spacecraft orbiting mars

Two small spheres spaced 20.0 cm apart have equal charge. how many excess electrons must be present on each sphere if the magnitude of the force of repulsion between them is 4.57 * 10-21 n?