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A frequency generator (a device that produces sinusoidal signals whose frequency and amplitude can be independently set) is used to power a horn. The frequency is set to 2000Hz, and for a particular amplitude the sound intensity is measured to be 0.050 W/m2 at a distance of 12m.
What is the power output of the horn?
What is the intensity of the sound wave 2m from the horn?
Taking the speed of sound in air to be 334m/s, what is the wavelength of this sound?
A hoodlum throws a stone vertically downward with an initial speed v0 from the roof of a building, a height h above the ground. How long does it take the stone to reach the ground
The puck in figure has a mass of .135 kg. If its original distance from the center of rotation is 31.2 cm, Determine the work put on the puck
A car (mass = 1060 kg) is traveling at 39 m/s when it collides head-on with a sport utility vehicle (mass = 2380 kg) traveling in the opposite direction. At what speed was the sport utility vehicle traveling
An airplane has a mass of 2.6 x10^6 kg, and the air flows past the lower surface of the wings at 95m/s. If the wings have a surface area of 1200m2, how fast should the air flow over the upper surface of the wing if the plane is to stay in the air?..
A car travels at a speed of 24 m/s around a curve of radius 57 m. The acceleration of gravity is 9.8 m/s^2 . What is the net centripetal force needed to keep the car from skidding sideways?
A corn hole player throws a bean bag by swinging it near the ground at 10 m/s. The objective is to land the bag in the opposing hole located 7.3m away. What are these two angles
A passenger plane lands on the runway at 300kmhrô???1. In a glass of water in the cabin, calculate the deceleration of the plane
UsingPrezi(http://prezi.com/), PowerPoint, or Word create a time-line and identify at least 7 important historical events that you believe influence sexuality today. Evaluate each of these events according to its significance in history and culture. ..
After the NEAR spacecraft passed Mathilde, on some occasion's rocket propellant was expelled to adjust the spacecraft's momentum in order to follow a path that would approach the asteroid Eros, final destination for the mission.
a proton and an alpha particle which has twice the charge and four times the mass of the proton are each accelerated
A bug crawls outward from the center of a compact disc spinning at 190 revolutions per minute. How far does the bug get from the center before slipping
On a safari, you are spearfishing while wading in a river. You observe a fish gliding by you. If your line of sight to the fish is 64.0° below the horizontal in air, and suppose the spear follows a straight-line path through the air and water afte..
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