Magnitude of the centripetal acceleration of the car problem
A car travels at a constant speed around a circular track, whose radius is 2.6 km. The car goes once around the track in 360s. What is the magnitude of the centripetal acceleration of the car?
a) 0.79m
b) 0.79m/s
c) 0.79 s
d) 0.79m/s
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How fast is the gyroscope precessing, in units of rad/s, if the disk is spinning around the axle at 28 rev/s?
The steam enters at 300 degreeC with a velocity of 25 m/s and exits as saturated vapor at 0.05 bar with a velocity of 90 m/s. Neglecting potential energy effects, determine the inlet pressure, in bar.
You are pushing a refrigerator across the floor of your kitchen. You exert a horizontal force of 315 N for 7.1 s, during which time the refrigerator moves a distance of 3.4 m at constant velocity. (a) What is the total work (by all forces) done on
The potential energy change from inlet to exit is negligible. For steady-state operation, determine the exit temperature, in R, the exit pressure, in psia and the mass flow rate, in lbm/s.
What is the angle of refraction as the ray enters the air on the far side of the prism?
Certain organic contaminants in soil can be driven out using hot air and steam. If 30.0 m3 air (partial pressure of steam 4.24 kPa) at 100 degree C.
The lengths of pregnancies are normally distributed with a mean of 266 days and a standard deviation of 15 days. Find the probability of a pregnancy lasting 307 days or longer
If the exit temperature of hot air is 30 deg C determine the exit temperature of cold water. (use constant specific heats at room temperature.)
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