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What is the net upward force on an airplane wing of area 20.7 m2 if the speed of air flow is 232 m/s across the top of the wing and 215 m/s across the bottom? (The density of air where the airplane flies is ρair = 1.21 kg/m3.)
Find the average magnitude of the induced emf if the change. The magnitude of the charge on a parallel plate capacitor is 4uC and the potential difference between the plates is 80V. What is the capacitance of this capacitor.
What is the beat frequency in Hz. A force of magnitude P pushes the block forward and downward as shown in the figure below. suppose the force is applied at an angle of 24.0° below the horizontal.
I just got this wrong for the third time. A u-tube manometer is used to measure the pressure of a vessel under vacuum. Assume the manometer is open to atmospheric pressure.
How are radioactive isotopes produced?
Explain how much time will it take for the police officer to reach the speeder, assuming that the speeder maintains a constant speed?
At what distance from the wire would the magnitude of the magnetic field equal to the strength of the Earth's magnetic field of 5.0 x 10^-5 T?
A loudspeaker of mass 22 is suspended a distance of = 1.6 below the ceiling by two cables that make equal angles with the ceiling. Each cable has the length of = 3.10.
A 105 granite cube slides down a 40 frictionless ramp. At the bottom, just as it exits onto a horizontal table, it collides with a 265 steel cube at rest. How high above the table must the granite cube be released to give the steel cube a speed of..
A 7.00 kg bowling ball moves at 2.30m/s. How fast must a 2.60g Ping-Pong ball move so that the two balls have the same kinetic energy.
What is the breaking strength
How fast is the top of the tree moving (in m/s) just before it hits the ground? Model the tree as straight, rigid rod, and ignore friction and air resistance.
A 100-kg halfback running north with a speed of 12 m/s is tackled by a 110-kg opponent running south with a speed of 4.0 m/s. If collision is completely inelastic and head-on, compute the speed of the players just after the tackle.
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