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The volume control on a stereo amplifier is adjusted so the sound intensity level increases from 23 to 61 dB. What is the ratio of the final sound intensity to the original sound intensity?
a solenoid with a certain number of turns n and carrying a current of 2.000 a has a length of 34.00 cm. if the
Red light of wavelength λ = 632.8 nm is incident on apair of slits whose separation is 0.70 mm. What is the separation of neighboring interference maxima on a screen 170 cm from theslits?( mm)
a capacitor is constructed of two concentric conducting cylindrical sheels. the radius of the inner cylindrical shell
A square wire 2.0 cm on each side is oriented so that 5.00 mT magnetic field makes a 30 degree angle with the normal to the plane of the square. how many loops does the wire make
In diving to a depth of 331 m, an elephant seal also moves 337 m due east of his starting point. What is the magnitude of the seal's displacement
A transverse periodic wave is represented by the equation z(y,t) = 3.2 cm sin( 5m^-1 y + 1500 rad/s t). What is the frequency of the vibration of the wave? Give answer in Hz
Two conductors insulated from each other are charged by transferring electrons from one conductor to the other. After 9.057 × 1013 have been transferred, the potential difference between the conductors is 16.8 V. The charge on an electron is −1.60218..
question1jims dog sparky runs 45.0 northeast to a tree then 70.0 west to a second tree and at last 25.0 south to a
A 0.252-kg volleyball approaches a player horizontally with a speed of 15.3 m/s. What impulse is delivered to the ball by the player
A uniform ladder 5.0 m long rests against a frictionless, vertical wall with its lower end 3.0 m from the wall. The ladder weighs 180 N. What is the actual frictional force when the man has climbed 1.0 m along the ladder
If 55.0 cm of copper wire (diameter = 1.00 mm) is formed into a circular loop, at what rate is thermal energy generated in the loop
To focus a camera on objects at dissimilar distances, the converging lens is moved toward or away from the image sensor, so a sharp image always falls on the sensor. A camera with a telephoto lens (f=200.00mm) is to be focused on an object located fi..
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