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A steel beam 10m long is installed in a structure at 15?C
Part A What is the beam's change in length when the temperature reaches -20?C?
Part B What is the beam's change in length when the temperature reaches 50?C?
An object is placed 12.0 cm in front of a converging lens of focal length 5cm. A concave mirror with radius of curvature 20.00 cm is located 30.00 cm in back of the lens. (Refer to attached picture)
Determine the power distribution in carrier and sidebands if the transmitted power is 1,000 W and mf = 1.
The spring constant for the tendon is the equal for both groups, 33. What is the difference in highest stored energy between the sprinters and the non athletes?
A partial record of a freely falling body showed only 3 consecutive points. The distance from the first to the second point was 24.550 cm. that from the first to the third was 58.92 cm.
The coil in the figure carries current i = 1.70 A in the direction indicated, is parallel to an xz plane, What is the magnetic torque (in unit-vector notation) on the coil
A 1.0 mCi source of Phosphorus called P-32, a beta emitter, is imlanted in a tumor where it is to administer 36 Gy. The half-life is 14.3 days and 1 mCi delivers about 10 mGy/min/ Approximately how long should the source remain implanted?
On a part-time job, you are asked to bring a cylindrical iron rod of density 7800kg/m3, Calculate the weight of the rod, w
A 2.54 kg particle moving along the x-axis experiences the force shown, where Fmax=6.85 N, Fmin=-6.85 N, d1=1.27 m, d2=2.54 m, d3=3.81 m, and d4=5.08 m. At x=0.00 m the particle's velocity is 3.93 m/s. What is its velocity at x=2.54 m?
A wire loop with an area of 3*10^-2 m^2 is in a magnetic field of 0.23 T directed at an angle of 30 degrees to the plane of the loop, what is the average induced emf in the loop
A wooden raft has a mass of 85 kg. while empty it floats in water (density 1000 kg/m3) with 61 percent of its volume submerged. What mass of sand can be put on the raft without it sinking.
Flying due east, the plane flies with the rotation of the Earth, while flying due west, it flies against the rotation. Will the flight times be the same? Different? Why?
A generating station is producing 1.90 106 W of power that is to be sent to a small town located 5.0 km away. Find the power used to heat the wires if the power is transmitted at 1050 V
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