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One electron collides elastically with a second electroninitially at rest. After the collision, the radii of theirtrajectories are 1.00 cm and 3.10 cm. The trajectories are perpendicular to a uniform magnetic field ofmagnitude 0.0580 T. Determine the energy(in keV) of the incident electron.
A converging lens with a focal length f1 = 4cm is placed to the left of a second identical lens f2. What is the separation distance between the two lenses
two charges are placed between the plates of a parallel plate capacitor. one charge is q1 and the other is q2 7.21c.
At point A , 5.0m from a small source of sound that is emitting uniformly in all directions, the intensity level is 56.0 dB, obtain the intensity of the sound
A cubic box of volume 5.1 x 10 -2m3 is filled with air at atmospheric pressure at20 degrees celcius. What is the net force on each side of the box
A refrigerator moves energy from a cold reservoir (the inside of the refrigerator) to a hot reservoir (the kitchen), but some extra energy is required in the form of work done by some outside agent (typically a compressor motor).
A cannon ball (m=.7 kg) traveling at 200m/s hits and is impeded into a 400 kg car. If the car was initially at rest, what will be its velocity after the impact
What mass can it support in water before sinking. Two concentric spherical shells with uniformly distributed masses M1 = kg and M2 = kg are situated as shown . Find out the magnitude Find the magnitude of the net gravitational force on a particle ..
A 1000 kg roller coaster car starts from rest from a hilltop 80.0 m above the ground, find the average frictional force between the car's wheels and the track
A typical digital cell phone emits radio waves with a frequency of 1.9 GHz. how many photons are emitted each second
Consider a simple spherical wave, with omega/k=c
Pick what you think are the most reasonable choices for each parameter in the Drake equation and justify your choice. estimate the likely nearest distance to such a civilization
A police car with a siren of frequency 8 kHz is moving with uniform velocity 36 km/hr towards a tall building which reflects the sound waves. The frequency of the siren heard by the car driver is
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