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A rod is 0.5100 m long at 25C. At 225C the rod is loaded with a stress of 2 76 MPa and its length is found to be 0.5358 m (under load at 225C). If the elastic modulus of this material is 5.52G Pa, calculate the coefficient of thermal expansion for this material. State any assumptions.
Light with a wavelength of 525 nm passes through a single slit that is 35 micro meters wide. On a screen that is 1.5 m away, how far is the second dark spot from the central bright spot
List all the possible set of quantum numbers for a hydrogen atom with n=3. What is the electrons total energy
a uniform stick 1.5 meters long With a massive 220 kg is pivoted at its center a 3.9 kg bullet is shot through the stick midway between the pivot, What is the angular speed of the spinning stick
A 500 \mu F capacitor is connected across a 1.25 H inductor. At a certain time, the charge on the capacitor is zero and the current is 0.347 A. What is the peak charge on the capacitor
A -11.0kg bucket is lowered vertically by a rope in which there is 163N of tension at a given instant, What is the acceleration of the bucket
The interior temperature is kept at 5°C, while the temperature at the outside surface is 25°C. Explain by how much heat per second is being removed from the unit?
A 17-cm-long microscope has an eyepiece with a focal length of 3.1cm and an objective with a focal length of 0.35cm. What is the approximate magnification
a 0.40kg basketball is thrown horizontally against a board with a velocity of 20m/sec. If the ball rebounds with a speed of 15m/sec. What is the impulse of the ball
Smoking causes blood vessels to constrict. If the average blood vessel radius of a smoker decreases 1.6% Calculate the needed percent increase in pressure
A 1500 car travelling at 26 suddenly runs out of gas while approaching the valley that looks like an inverted hump. 12m at the left where the care runs out of gas and 19 m at the right were it is headed. What will be the car's speed as it coasts into..
The square loop shown is made of wires with a total series resistance of 10 W. It is placed in a uniform 0.100-T magnetic field directed perpendicular into the plane of the paper.
An insulating rod of length 14.0 cm is bent into the shape of a semicircle and has a uniform total charge of -7.5 uC, Calculate the magnitude and direction of the electric field at the center of the semicircle arc
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