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Shaving/makeup mirrors typically have one flat and one concave(magnifying) surface. You find that you can project a magnified image of a lightbulb onto the wall of your bathroom if you hold themirror 1.6 m from the bulb and 3.8 m from the wall.
What is the magnification of the image?Is the image erect or inverted?What is the focal length of the mirror?
A square loop (length along one side = 20 cm) rotates in a constant magnetic field which has a magnitude of 2.0 T. At an instant when the angle between the field and the normal to the plane of the loop is equal to 20? and increasing at the rate of 10..
Assume temperate is 20 degree C. A submarine 64m deep emits a sonar wave. How deep is the ocean at that point
Suppose we have an isotropic substance, for which the coefficient of linear expansion, α(alpha), is the same in all directions. Show the volume expansivity β(beta)=3α.
what is length of the stick as measured from S?
If the length of the Achilles tendon increases 0.600 cm when the force exerted on it by the muscle increases from 3087 N to 4955 N, what is the "spring constant" of the tendon
if a ball is dropped from a cliff with an initial velocity of 25ms with a direction of 40 degrees out from the y axis
A uniform 3.0-m plank weighing 150 N is suspended by vertical ropes at either end. determine the tension in the rope holding the left end of the plank
A 0.20kg object is attached to a spring with spring constant k=10n/m and moves with a simple harmonic motion over a horizontal frictionless surface. At the instant it is displaced from equilibrium by -0.050m, what is it's acceleration.
a classical system of n distinguishable non-interacting particles of mass m is placed in a three dimentional harmonic
A modem is designed to transmit at 100 kbps over a channel with 15 dB signal to nose ratio. Find the maximum symbols on the constellation of this modem.
The ramp is slanted at an angle of 17.0 degrees to the horizontal. Illustrate what is the coefficient of kinetic friction between the block and the ramp?
Water at a pressure of3.8atm at street level flows into an office building at a speed of0.70m/s through a pipe4.4cm in diameter. Calculate the flow velocity and the pressure in such a pipe on the top floor
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