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An electron moving by a velocity v in the positive x direction enters a region of uniform magnetic field that points in the positive z direction. The force on the electron will be
1. in the positive y direction
2. in the negative z direction
3. in the positive z direction
4. in the negative y direction
Old naval ships fired 10kg cannon balls from a 250 kg cannon. It was very important to stop the recoil of the cannon, as otherwise the heavy cannon would go careening across the deck of the ship.
A ball is thrown directly downward with an initial speed of 8.50 m/s, from the height of 29.5 m. After what time interval does it strike the ground.
Assume a rocketship in deep space moves with constant acceleration equal to 9.8 m/s2, which gives the illusion of normal gravity during the flight. Estimate the time required by a rocketship to attain the speed of light and the distance travelled t..
A slinky has a mass of 0.28kg and negligible length. When it is stretched 1.6m, it is found that transverse waves travel the length of the slinky in 0.80s. (The slinky stretches like an ideal spring, and propagates transverse waves similar to a rope ..
The RMS speed of oxygen molecules (O2) in this room is 535 m/s. What is the temperature of the air at this location
How many electrons are there in a tablespoon. Find the tension in each cable. right cable and left cable.
find the magnitude of her centripetal acceleration. A small box is held in place against a rough vertical wall by someone pushing on it with the force directed upward at 27{rm ^circ} above the horizontal.
A converging lens (f1 = 24.0 cm) is located 56.0 cm to the left of a diverging lens (f2 = -28.0 cm). How far is the object from the converging lens
IF Earth's orbit were suddenly to become much more eccentric. keeping orbital semimajor axis as is, fixed at 1 AU, but let's imagine shifting both the Earth's perihelion and aphelion points by 0.9 AU, so that at perihelion we were only 0.1 AU from th..
your friend rides a bicycle along the edge of a river starting at point a and riding east at a constant speed of vbike.
The refractive index of a transparent material can be determined by measuring the critical angle when the solid is in air. If ?c= 42.0° what is the index of refraction of the material?
1.7 kilograms of water are changed from ice at 0?C into liquid water at 0?C, determine the change in mass of the water
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