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An electron with kinetic energy 4.60 keV circles in a plane perpendicular to a uniform magnetic field. The orbit radius is 50.0 cm. Discover the following values.
1) The speed of the electron
2) The magnetic field
3) The frequency of circling
4) The period of the motion
A spring has a spring constant of 578 N/m. When used tosuspend an object in air, the spring stretches by 0.0640 m. What buoyant force acts on the object
you must determine the acceleration of a rocket so that its equipment can be designed to survive. the rocket will have a burne time of t=30 second, what is maximum altitude of the rocket
A 1100 kg car which was moving at 12.0 m/s, was hit by a 1400kg van that was coming behind it. After collision both vehicles stick together and move forward. If their speed now after the collision was 16.5 m/s what was the speed of the van now before..
Blood flows in an aorta of radius 8.0 mm at 28 cm/s. Calculate the volume flow rate in liters per minute
turning a laser you shine the beam on an object located nearby and observe the interference pattern with a suitable
The potential difference between the accelerating plates of a TV set is about 25 kV. find the magnitude of the uniform electric field in the region between the plates
A moving particle encounters an external electric field that decreases its kinetic energy from 8650 eV to 7540 eV as the particle, Determine the charge of the particle. Include the algebraic sign (+ or ?)
create a position vs. time speed vs. time and acceleration vs. time graph for both cars. write a paragraph comparing
A typical flying insect applies an average force equal to twice its weight during each downward stroke while hovering. estimate the average power output of the insect
The power output of a car engine running at 2900 rpm is 300 kW. How much work is done per cycle if the engine's thermal efficiency is 10.0%
A protostar has a temperature of 3000 K,radius of 2*10^8 km at stage 4. At stage 6, Calculate the star's change in absolute magnitude as it evolves from stage 4 to stage 6
An 250 kg air hockey puck is tied to a peg. The puck is given a push and moves around the peg at a constant speed in a circle. What is the acceleration of the puck
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