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Calculate the frequency and power for given problem:
Problem: A meteor is falling from space at 1500 m/s coming directly at you. Because of its irregular surface it's making a whistling sound as it falls through earth atmosphere. At a moment when it is 2.1 km over your head the frequency of 3.3 kHz and loudness of 20dB, at the meteor what is the frequency and power of this sound?
Show how you get the solution, so that I can better understand how to do it. Show all work and steps thanks.
A 5 g bullet with speed of 400m/s gets stuck in a 1 kg wooden block (originally not moving). Classify the collision. (b) Find the new speed of block+bullet. (c) Find the amount of kinetic energy lost. Where does it go?
If the car was in neutral and its brakes were off, so that the collision is approximately elastic, find out the final speed of the truck.
A 1200 {\rm kg} car moving at 88 {\rm km/h} collides with a 7600{\rm kg} truck moving in the samedirection at 65 {\rm km/h} . The two stick together,continuing in their original direction at 68 {\rm km/h}. Determine the kinetic energy of the center..
A neutron at rest decays into a proton with a decay energy of Q=0.782 MeV. Find maximum kinetic energy of the residual proton
A pilot wishes to fly due east. If the planes maximum speed is 683 km/hr and there is a 21.4 km/hr wind from the north, what must the planes velocity be in order to fly due east
A cell membrane is composed of lipid molecules and approximately 11 nm thick, what is the approximate capacitance of a spherical cell that has a diameter of 11mu or micro m
A particle is acted on by two torques about the origin: τ1 has magnitude 6 N m and points in the direction of increasing x, and τ2 has magnitude of 4 N m and points in the direction of decreasing y.
Figure 25-18 shows a parallel-plate capacitor of plate areaA and plate separation d. A potential differenceV0 is applied between the plates. While thebattery remains connected, a dielectric slab of thicknessb and dielectric constant κ is placed bet..
A 2.65 kg object is moving in a plane, with its x and y coordinates given by x = 2t2 - 3 and y = 2t3 + 6, where x and y are in meters and t is in seconds. Find out the magnitude of the net force acting on this object at t = 2.00 s.
A constant volume gas thermometer has a pressure reading of 0.9000 atm at -50degrees Celsius and a reading of 1.510 atm at 100 degrees Celsius. What temperature is associated with a) a pressure of 1.000 atm and b) 1.200 atm?
A string is wrapped tightly around a fixed pulley that has a moment of inertia of 0.0352 kg m2 and a radius of 12.5 cm. The string is pulled away from the pulley with a constant force of 5.00 N. As the string unwinds the pulley begins to rotate. What..
A 120g iron container holds 150g of water all at 25.0 degreesC. Two objects are dropped into the water. find the mass of the aluminum
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