Find the momentum and kinetic energy
An electron and a proton are each accelerated through a potential difference of 21 million volts. Find the momentum (in MeV/c) and kinetic energy of each, and compare with the results when using the classical formulae.
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Suppose that from t = 0 to t = 4.9 s, the elevator ascends at a constant speed of 10 m/s. Its speed is then steadily reduced to zero during the next 3.2 s, so that it is at rest at t = 8.1 s. Describe the reading of the scale during the interval 0
Derive an expression for the steady-state temperature, T_b, at the base of the rod (x=0). The exposed portion of the rod should be modeled as an infinitely long fin.
Calculate the friction force on a walking 75.0 kg astronaut carrying a 44.0 kg instrument pack on the moon if the coefficient of kinetic friction at her hip joint is 0.0050. (Recall that approximately 65 of the body weight is above the hip.)
An experimenter has prepared a drug dosage level that she claims will induce sleep for 80% of the people suffering from insomnia. After examining the dosage, we feel that her claim regarding the effectiveness of the dosage is inflated.
Assuming 25 drops per milliliter, determine the initialmolar concentration of IO3- after the mixing but before anyreaction occurs (at time=0)?
Determine expressions for the local and convective components of acceleration in the x and y directions. What is the magnitude and direction of the velocity and acceleration at point x = y = 2 m at t = 0?
A carnot heat pump operates between an outdoor temperature of 258 K and an indoor temperature of 283 K. Find its coefficient of performance.
A wind is blowing with a speed of 250 km/h from the south. The vector diagram illustrates the direction that the pilot should direct the aircraft so that its velocity relative to the ground is due west. Find the speed of the aircraft relative to t
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