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In a butcher shop, a horizontal steel bar of mass 4.57 kg and length 1.27 m is supported by two vertical wires attached to its ends. The butcher hangs a sausage of mass 2.41 kg from a hook that is at a distance of 0.173 m from the left end of the bar.
a) What is the tension in the right wire?
b) What is the tension in the left wire?
A circus clown weighs 900 N. The coefficient of static friction between the clown's feet and the ground is 0.4. What is the minimum pulling force that the clown must exert to yank his feet out from under himself
At high noon, the Sun delivers 825W to each square meter of a blacktop road. If the hot asphalt loses energy only by radiation, what is its equilibrium temperature.
1) Compute the change in the internal energy of a thermodynamic system under the following scenarios: (i) 50 J of heat added and 40 J work extracted, (ii) 50 J of heat added and 75 J work extracted,
A capacitor is connected across an ac generator whose frequency is 746 Hz, What is the magnitude of the maximum charge on one plate of the capacitor
A large balloon of mass 233 kg is filled with helium gas until its volume is 327 m3. Assume the density of air is 1.29 kg/m3, Calculate the buoyant force acting on the balloon
A molecule of DNA (deoxyribonucleic acid) is 2.07 µm long. The ends of the molecule become singly ionized: negative on one end, Determine the effective spring constant of the molecule
As a bat flies toward a wall at a speed of5.70m/s , What frequency does the bat hear in the reflected wave
what is the bullets time in the air. The heat capacity of ice is 2.09 and that of steam is 2.01.
A stone is thrown horizontally at a speed of 4.9 m/s from the top of a cliff 89.5 m high, how long does it take the stone to reach the bottom of the cliff.
A geiger-muller tube is a type of gas-filled radiation detector. It can detect particles like X-rays, alpha particles and beta rays (electrons). what is the density of the gas in this geiger tube
(a)For a satellite to be in a circular orbit 660 km above the surface of the earth, what orbital speed must it be given (b)What is the period of the orbit (in hours)
Use Pascal's principle. Given that Fout is 87 lb., the areas of the output and input cylinders are Aout 29 in2 and Ain 6 in2, what is the input force
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