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The now-discontinued Concorde flew at Mach 1.3, which meant the speed of the plane was 1.3 times the speed of sound in air. What is the angle among the direction of propagation of the shockwave and the direction of the plane's velocity?
A car with the mass of 1500.0 kg (initially moving to the right) collides with a bus that has a mass of 5000.0 kg. What is the initial velocity of the bus
The tension in the string when the ball is at the very bottom of the circle is 4.3 N. At the very bottom of the circle, a very sharp knife is suddenly inserted, to cut the string directly below point of support. How far to the right of where the s..
what are most important concepts and equations one must know about current resistance and circuits. including but not
A man with mass m1 = 56 kg stands at the left end of a uniform boat with mass m2 = 179 kg and a length L = 3 m. What is the location of the center of mass of the system
A converging lens with a focal length of 17.9 cm and a diverging lens are placed 26.0 cm apart, with the converging lens on the left. What is the height of the final image
A special electronic sensor is embedded in the seat of a car that takes riders around a circular loop-the-loop ride at an amusement park. The sensor measures the magnitude of the normal force that the seat exerts on a rider.
A series of small machine components being moved by a conveyor belt passes over a 140-mm-radius idler pulley. At the instant shown, the angular velocity of the idler pulley is 5 rad/s clockwise. If the total acceleration of point B is 2400 mm/s2, wha..
20 kg of water occupy a volume of 1 m^3 in a piston cylinder device at a pressure of 45 bars, Determine the final temperature of the water and Calculate the work and heat involved during this process
You are measuring the speed of a projectile using sonar. If the output frequency of 265.5 Hz is reflected back and received by the stationary sonar unit at 251 Hz, what is the speed of the projectile
A copper wire has a square cross section 2.7 on a side. The wire is 3.8 long and carries a current of 4.0 . The density of free electrons is 8.5*10^28 m^-3.
A satellite is in orbit about Earth. Its orbital radius is 5.47×107 m. The mass of the satellite is 8913 kg, Determine the orbital speed of the satellite
Sarah and her bicycle have a total mass of 40 kg. Her speed at the top of a 10 m high and 100 m long hill is 5 m/s. at what speed will she be going when she reaches the bottom
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