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A mercury thermometer is constructed as shown. The capillary tube has a diameter of 0.0025 cm, and the bulb has a diameter of 0.2cm. Find the change in the height of the mercury plum for the temp change of 20C. The volume expansion coefficient of mercury is 0.000182 C^ -1
is tightly wound into a long solenoid , and a 3.6 A current is passed through it. What is the magnetic field of the solenoid
n undamped 1.47-kg horizontal spring oscillator has a spring constant of 25.1 N/m, What is the oscillator\'s total mechanical energy as it passes through a position that is 0.651 of the amplitude
An experiment you're designing needs a gas with = 1.60. You recall from your physics class that no individual gas has this value, but it occurs to you that you could produce a gas with = 1.60 by mixing together a monatomic gas and a diatomic gas.
A helicopter propeller blade starts from rest and experiences a constant angular acceleration of 10.5 rad/s2. Find the speed of a point on the blade 5.35 m from the axis of rotation
A plastic bag is filled with hydrogen at atmospheric pressure and 20.0 oC. Assume that the mass of the bag is negligible, How large a volume of hydrogen (in m3) is required
A horizontal bar of negligible weight has a 55.10 lb weight hanging from the left end and a 72.0 lb weight hanging from the right end. The bar is seen to balance 97.50 in from the left end. Find the length of bar.
The inner and outer surfaces of a cell membrane carry a negative and positive charge, respectively. What is the magnitude of the electric field in the membrane
A proton has an initial speed of 3.3*10^5, What potential difference is required to reduce the initial speed of the proton by a factor of two
a uniform electric field of magnitude 230 vm is directed in the positive x direction. a 11.0 microc charge moves from
A 1.0-cm-diameter pipe widens to 2.0 cm, then narrows to 0.5 cm. Liquid flows through the first segment at a speed of 9.0 m/s. What is the speed in the second segment
Calculate and compare the electron densities of a piece of aluminum 1 cm thick and a piece of iron of the same density thickness. Show your work & please be sure to compare.
The Mariana trench is located in the Pacific Ocean at a depth of about 11 000 m below the surface of the water. For comparison, determine the weight of a jetliner whose mass is 4.30 × 105 kg
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