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A block sits on a plate that in turn rests on the surface of a fluid as shown in the figure below. The plate is partially submerged in the fluid, its area is .39 m^2, and there is air at atmospheric pressure Patm above the block and liquid. If the mass of the block and plate together is 13 kg, what is the pressure P in the fluid just below the plate? Express your answer as P-Patm.
An electron and a proton each have a thermal kinetic energy of 3×kBT/2. Compute the de Broglie wavelength of each particle at the temperature of 2050 K. (kb is Boltzmann's constant, 1.38×10-23 J/K).
As part of a safety investigation, two 1900 kg cars travelling at 19 m/s are crashed into different barriers. Determine the average forces exerted on (1) car that hits a line of water barrels and takes 1.7 s to stop, and (2) car that hits a concre..
A satellite is placed in orbit 9.00x10^5 m above the surface of the planet Jupiter. Find the orbital speed of the satellite
Copper wire (resistivity 1.7x10-8 italic capital omega space straight m , circular cross section with radius 2.34 mm) is used to form 2 thousand circular loops of wire in a solenoid
A 10m^3 tank of compressed natural gas has an absolute pressure of 400 kPa at a temperature of 27 C. What is the mass of the gas in the tank
A box slides down a 25° ramp with an acceleration of 1.070m/s2. Resolve the coefficient of kinetic friction between box and ramp.
A certain dam is holding back fresh water 203 m deep. What is the water pressure at the base of the dam
A certain toaster has a heating element made of Nichrome resistance wire, What is the final temperature of the heating element
A person driving her car at 49 km/h approaches an intersection just as the traffic light turns yellow. She knows that the yellow light lasts only 2.0 s before turning to red, and she is 30 m away from the near side of the intersection .
You are designing a banked turn at an automobile racetrack, The coefficient of static friction between the track and the tires is 0.400. What are the radius of curvature R and banking angle
An 8.70-cm-diameter, 340g solid sphere is released from rest at the top of a 1.50-m-long, 18.0 degree incline. What fraction of its kinetic energy is rotational
An electron with kinestic energy 1.8 keV circles in a plane perpendicular to a uniform magnetic field. The orbit radius is 27.0 cm, Find the period of the motion
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