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Question: Atmospheric pressure the rate of change of atmospheric pressure P with respect to the altitude above sea level h is proportional to the pressure. That is,
dP/dh = kP
Suppose that the pressure at sea level is denoted by P0, and at 18,000 ft the pressure is half what it is at sea level. Find the pressure, as a percent of P0, at 25,000 ft.
A(n) 2655 kg van runs into the back of a(n) 848 kg compact car at rest. They move off together at 8.8 m/s. Assuming no friction with the ground, find the initial speed of the van
An AC voltage of the form ?V = (85 V) sin (310 t) is applied to a series RLC circuit. If R = 46 ?, C = 29 µF, and L = 0.27 H, find the impedance of the circuit
The thickness of the bubble is 115nm and the bubble is illuminated by white light at normal incidencewhat colors(wavelengths) are transmitted throug the bubble
A 18.0 kg block is being pushed up a ramp by a force FP = 150 N acting horizontally. Determine the work done on the block by the frictional force
A van of mass 1420 kilogram traveling at 20 m/s is at the foot of a hill that rises 120 meter in 2 kilometer. Calculate the average power delivered by the van engine
If a capacitor has been left in a steady circuit for a long time, what can you say about the current going through it? The circuit below has been left on for a long time. What is the voltage across the capacitor? (Hint, it is not 5V)
A mass of 12.5 kg is hanging by a steel wire 1.13 m long and 1.03 mm in diameter. If the mass is pulled down slightly and released, what will be the frequency of the resulting oscillations
Determine the minimal frequency of the force we can measure with this system if the maximal allowed amplitude error is 5%.
Assume that, as lying on a beach near the equator of a far-off planet watching the sun set over a calm ocean, you start a stopwatch just as the top of the sun disappears.
A 44-kg girl is bouncing on a trampoline. During a certain interval after leaving the surface of the trampoline, How high does she rise during this interval
What is the charge on the capacitor at t=5 seconds (in coulombs)? What is the voltage on the capacitor at t=5 seconds (in volts)?
A cylinder with a radius of 0.120 m is placed between the plates of a hydraulic press. A 4.45 x 105 -N force is applied to the cylinder. What is the pressure on the end of the cylinder due to the applied force?
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