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A source emits sound wavesof frequency 200 Hz, which move through still air at 340 m/s. Thesource moves with a speed of 80 m/s relative to still air toward astationary listener.
a) Find the wavelength of the sound between the source and thelistener
b) Find the frequency heard by the listener?
A rescue helicopter lifts a 85.3-kg person straight up by means of a cable. Use the work-energy theorem and find the final speed of the person
At the intersection of Texas Avenue and University Drive, a yellow, subcompact car with mass 950 kg traveling east on University collides with a maroon pickup truck with mass 1900 kg that is traveling north on Texas and ran a red light
What is the speed of each ball as it strikes the ground? How far apart are the balls 0.700 s after they are thrown.
q1. george of the jungle with mass m swings on a light vine hanging from a stationary tree branch. a second vine of
A 1960 kg weather rocket is launched straight up. The rocket motor provides a constant acceleration for 22.03 s, then the motor stops. The rocket altitude 26.3 s after launch is 6641. You can ignore any effects of air resistance.
A certain kind of glass has nblue = 1.62 for blue light and nred = 1.572 for red light. what is the angle between the red and blue light inside the glass
A 63.5kg astronaut is doing a repair in space on the orbiting space station. She throws a 2.35kg tool away from her at 3.60m/s relative to the space station. With what speed will she begin to move\\
A spring is hanging from the ceiling. Attaching a 440gg mass to the spring causes it to stretch 18.0cmcm in order to come to equilibrium. What is the maximum speed of the mass
A solid metal sphere of radius a = 1.30 cm is surrounded by a concentric spherical metal shell of inner radius b = 1.90 cm and outer radius c = 2.40 cm. What is the surface charge density, sc, on the outer surface of the outer spherical conductor
A block of mass m = 2.10 kg slides down a 30.0° incline which is 3.60 m high. Determine the speeds of the two blocks after the collision
A baseball pitcher can throw a fastball at a speed of ~150 km/hr. what is the largest size spherical asteriod of density p = 3 g cm^-3 from which he can throw the ball fast enough that it: a) escapes from the asteroid into heliocentric orbit?
Water flows through a fire hose of diameter 7.09 cm at a rate of 1.2 x10-2 m3/s. What is the velocity with which the water exits the hose
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