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The now-discontinued Concorde flew at Mach 1.1, which meant the speed of the plane was 1.1 times the speed of sound in air. Evaluate what is the angle between the direction of propagation of the shock wave and the direction of the plane's velocity?
____°
A 4m long wire with thickness 5mm carries a current 0.4 A. A second identical wire of equal length and thickness is parallel and carries 0.6 A in the same direction. What is the force of the first wire on the second wire
Dolphins emit clicks of sound for echolocation and communication. Find the difference (in Hz) between this frequency and the number of clicks per second actually emitted by the dolphin
A 1.95 kg mass attached to a spring oscillates with a period of 0.390 s and an amplitude of 17.0 cm. Find the total mechanical energy of the system
a 14700n car is traveling @ 25m/s. the brakes are applied suddenly, and the car slides to a stop the average braking force between the tires and the road is 6980n. how far will the car slide once the brakes are applied
The allowed energies of a simple atom are 0.00 eV, 4.25eV , and 6.64eV. What wavelengths appear in the atom's emission spectrum
question a car is traveling east at 15.21 ms. 29.87 seconds later it is traveling north at 15.21 ms. what is the
Light of wavelength 480nm falls normally onfour slits. Each slit is 2μm wide and isseperated from the next slit by 6μm. find the angles of any bright interference maxima that lie inside the central diffraction maximum
Randomly polarized light of intensity I0 is passed through two polarizers whose transmission axes differ by 45 degrees. What is the intensity of the light
High-impact activities are hard on the joints and can cause significant damage to the cartilage in the knees. what is the maximum change in thickness of the cartilage
A mass of 0.79 kg, attached to a spring by a spring constant of 67 N/m, is set into simple harmonic motion. What is the magnitude of the acceleration of the mass when at its maximum displacement of 0.51 m from the equilibrium position?
You stand with your nose 5.0cm from the surface of a reflecting ball, and your nose's image appears three-quarters full size. What is the balls diameter?
Two 10-cm-diameter charged rings face each other, 16.0 cm apart. What is the electric field strength at the center of the left ring
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