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At what energy does an electron become "relativistic"? Consider electrons with kinetic energies of 50 eV, 50 keV, and 50 MeV. For each case, calculate the momentum of the electron first using the non-relativistic formula for kinetic energy, and then using the correct relativistic formulas. Express the momentum in units of eV/c, or keV/c, or MeV/c (whichever is appropriate). Compare your answers for each case. When is it important to use the relativistic formulas?
A ball is thrown up with a velocity of 8 m/s and allowed to fall back down. how long will the ball take to return to its initial position
An airplane pilot fell 355 m after jumping from an aircraft without his parachute opening. He landed in a snowbank, creating a crater 1.3 m deep, estimate the work done on him by air resistance as he fell
Suppose you wish to make a solenoid whose self-inductance is 1.5 mH, The inductor is to have a cross-sectional area of 1.7 x 10-3 m2 and a length of 0.046 m
A block of unknown mass, m, is brought into the configuration shown. It was measured that upon release the block shot upward a maximum distance of 2m. Calculate the mass of this block? The upper spring has a natural length of 1m, and the lower spr..
In a student experiment, a constant-volume gas thermometer is calibrated in liquid nitrogen (?196°C) and in boiling allyl alcohol (97°C). What value of absolute zero does the calibration yield
If the fish starts from a distance 1.09 m from the base of the ledge over which the waterfall flows, Can the fish make this jump
A car dealer claims that his product would accelerate at a constant rate from rest to a speed of 200 km/hr in 8s. What approximate distance will the car travel.
A jumper in the long-jump goes into the jump with a speed of 12m/s at an angle of 20 deg above the horizontal. How long is the jumper in the air
A storage tank contains 21.6 kg of nitrogen (N_2) at an absolute pressure of 3.54 atm. What will the pressure be if the nitrogen is replaced by an equal mass of CO_2 ?
What magnitude of charge must be given to the drop
When a potential difference of 168 V is applied to the plates of a parallel-plate capacitor, the plates carry a surface charge density of 23.0 nC/cm2. What is the spacing between the plates
The nucleus of 8Be, which consists of 4 protons and 4 neutrons, is very unstable and spontaneously breaks into two alpha particles (helium nuclei, each consisting of 2 protons and 2 neutrons).
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