Accelerated from rest through an electric potential
A proton of mass mp = 1.67 x 10-27 kg and charge +e = 1.60 x 10-19 C is accelerated from rest through an electric potential of 270 kV. What is its final velocity?
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Zach, whose mass is 70 , is in an elevator descending at 11 . The elevator takes 3.0 to brake to a stop at the first floor. What is Zach's apparent weight while the elevator is braking?
An analytical laboratory balance typically measures mass to the nearest 0.1 mg. What energy change would accompany the loss of 0.1 mg in mass?
Determine the mass flow rate of hot water withdrawn from the tank during the shower and the average temperature of mixed water used for the shower.
Two wheels of mass m and moment of inertia I are connected by a massless axle of length L. The system rests on a frictionless surface and the wheels rotate without frequency ω around the axle.
Also assume that all heat rejection processes are to a low temperature reservoir with a temperature of 300 K. Using the properties of air at 300 K, find the peak temperature of the cycle.
The electric potential at the center of a square is -3 V when a charge of -Q is located at one of the square's corners. What is the electric potential at the square's center when identical charges of +Q are placed at the other three corners of the s
Calculate the mass concentration, in (micro)g/m3, of a mono-dispersed aerosol with dp = 10.0 micron, (rho)p = 2.1 g cm^-3, and N = 9.55 cm^-3.
On a smoggy day in a certain city the ozone concentration was0.50 ppm by volume. Calculate the partial pressure of ozone and the number of ozone molecules per liter ofair if the temperature and pressure were 20.0°C and738 mmHg, respectively.
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