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A thin rod of length 9.5 m and mass 16 kg is supported at a 28? incline. One support is 1 m and the other is 9.3 m from the lower end of the rod. Friction prevents the rod from sliding o? the supports. Find the normal force exerted on the rod by the lower support. The acceleration of gravity is 9.81 m/s^2. Answer in units of N
A heater coil connected to a 220V ac line has a resistance of 42.1Ohm. What is the average power used, What is the maximum value of the instantaneous power
Light with all wavelengths present shines on a 1000.0nm thick film of plastic. find all of the visible wavelengths that are seen in the reflected light
The nucleus of 8Be, which consists of 4 protons and 4 neutrons, is very unstable and spontaneously breaks into two alpha particles (helium nuclei, each consisting of 2 protons and 2 neutrons).
A 2.50 nF parallel plate capacitor has a 1.60 mm air gap between the plates. The voltage difference between the capacitor plates is 365 V, Find the electric field magnitude between the plates
A thin uniform rod (mass = 0.95 kg) swings about an axis that passes through one end of the rod and is perpendicular to the plane of the swing. What is the maximum kinetic energy of the rod as it swings
A 7.89-kg fish swimming 4.23 m/s swallows an absent-minded 5.16-kg fish swimming toward it at a velocity that brings both fish to a halt immediately after lunch
Chromium is produced by reacting its oxide with aluminium. If 354 g of Cr2O3 and 158 g of Al react to form 204 g of Al2O3, how many grams of Cr are formed.
The coil is flipped so its plane is vertical to the magnetic field in 0.050 s. What is the magnitude of the average induced emf.
A converging lens of focal length 7.550cm is 20.5cm to the left of a diverging lens of focal length -6.50cm, find the location of the coins final image
The internal energy of the coin
In the Bohr model of the hydrogen atom, an electron moves in a circular path around a proton. The speed of the electron is approximately 2.19 106 m/s. Find the centripetal acceleration of the electron
Two tiny spheres have the same mass and carry charges of the same magnitude. Determine the charge magnitude
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