An electron moves in the - x direction through a uniform magnetic field that is in the - y direction. which direction is the magnetic force on the electron?

If you needed to find the force needed to pull a small car up a ramp it would be best to use - A. A spring scale B. An electronic balance C. A triple beam balance D. A formula

Once a baseball has been hit into the air, what forces are acting upon it?

Which pair of vectors below, if summed, would create a state of equilibrium (a resultant of 0i + 0j) ? a. 0i + 0j and 2i - 2j b. 2i + 2j and 2i - 2j c. 2i + 2j and - 2i - 2j d. 2i + 0j and 0i + 2j

What percent of our solar system's mass is in the sun?

A particular car has a weight of 9500 N. What is the mass of the car? 9500 kg 95000 kg 950 kg 2160 kg

calculate the force exerted on a rocket given that the propelling gases are expelled at a rate of 1500 kg/s with a speed of 4.0x10^4 (at the moment of take off)

Which of the following statements about electrons is not true? A) Electrons orbit the nucleus rather like planets orbiting the Sun. B) Within an atom, an electron can have only particular energies.

In longitude waves, the medium moves parallel to the direction of energy transport

Thomsonâs experiment is credited with the discovery of which particle?

When you drop a pebble from height h, it reaches the ground with kinetic energy k if there is no air resistance. from what height should you drop it so it will reach the ground with twice as much kinetic energy?