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Solve the all parts of given question:
Question: A certain sound source is increased in sound level by 39 dB.
Part A: By what multiple is its intensity increased?
Part B: By what multiple is its pressure amplitude increased?
Rework your solution from the beginning and check each step carefully. Thanks.
A force vector points at an angle of 50.4° above the +x axis. It has a y component of +289 Newton's. Calculate the magnitude of the force vector
q1. a space vehicle is coasting at a constant velocity of 28.5 ms in the y direction relative to a space station. the
A solenoid of length 5.6 cm and diameter 0.88 cm is wound with 167 turns per cm. The current is decreasing at a rate of 37.4 A/s. What is the induced emf in the entire solenoid
Two solid blocks of identical size are submerged in water. One block is aluminum and the other is lead. Upon find which is the buoyant force greater
two point charges are placed along a horizontal axis with the following values and positions 4 microc at x 0 cm and -
a 2.73 kg wood block is launched up a wooden ramp that is inclined at a 30deg angle. the blocks initial speed is 10.15
A container of hot water at 80 degrees cools to 79 degrees in 15 seconds while it is placed in a room that is t 20 degrees. Use newton's law of cooling to estimate the time it will take for the container to cool from 50 degrees to 49 degrees.
When a mass is suspended from a spring, the equilibrium length is increased by 50mm. Find the period and amplitude of the resulting oscillations
The drawing shows an adiabatically isolated cylinder that is divided initially into two identical parts by an adiabatic partition. Both sides contain one mole of a monatomic ideal gas (γ=5/3) with the initial temperature being 525 K on the left an..
Consider a spacecraft in an elliptical orbit around the earth. At the low point, or perigee, of its orbit, it is 300km above the earth's surface; at the high point, or apogee, it is 2500km above the earth's surface. What if the rockets were fired ..
The Mars rover is moving along at a speed of 2 m/s (it knows how to motor!) in a straight line, and in its sights it spies a rock formation up ahead in its path, and it decides to stop precisely at the rock to investigate.
An 66 kg man on ice skates is pushing his 33 kg son, also on skates, with a force of 125 N. What force is exerted by the boy on his father
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