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An airplane is cruising at an altitude of 10 km. The pressure outside the craft is 0.311 atm; within the passenger compartment, the pressure is 1.01 atm and the temperature is 20°C. A small leak occurs in one of the window seals in the passenger compartment. Model the air as an ideal fluid to find the speed of the stream of air flowing through the leak. (Assume the density of air to be 1.20 kg/m3.)
An object with a net charge of 44 µC is placed in a uniform electric ?eld of 554 N/C, directed vertically. The acceleration of gravity is 9.81 m/s^2. What is the mass of this object if it ?oats in this electric ?eld?
You throw a stone upward from the top of a building at an angle of 25° to the horizontal, How far from the base of the building does the stone land
A 70kg block is pushed 5m up an incline against a friction force of 50N. The block is pushed to a height 1m above the ground. How much work is done by the person on the block
question1marilyn m and her identical in every way twin sister sheila s are riding on a merry-go-round revolving at a
A bowling ball (mass = 7.2 kg, radius = 0.11 m) and a billiard ball (mass = 0.39 kg, radius = 0.028 m) may each be treated as uniform spheres
An object moves with constant acceleration 4.20 m/s^2 and over a time interval reaches a final velocity of 11.8 m/s. calculate the distance it travels during this interval
A tin can is filled with water to a depth of 38cm . A hole 20cm above the bottom of the can produces a stream of water that is directed at an angle of 30? above the horizontal
Particle A and particle B are held together with a compressed spring between them. When they are released, the spring pushes them apart, and they then fly off in opposite directions, what are the kinetic energies of each particle
A 3.00-kHz tone is being produced by a speaker with a diameter of 0.160 m. find the change in the diffraction angle
A 150 pF capacitor and a 600 pF capacitor are both charged to 2 kV. They are then disconnected from the voltage source and are connected together, Find the energy lost when the connections are made
You operate a small grain elevator near Champaign, Illinois. What is the power provided by the electric motor powering the bucket elevator when the bucket elevator ascends with a full load at a speed of 2.2 m/s
You are pulling a suitcase through an airport at a constant speed. The handle of the suitcase makes an angle of 60 degrees with respect to the horizontal direction, what is the contact force due to the floor acting on the suitcase
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