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A Worker at B pulls on the rope attached to the top of the pole at A with a force of F=20N. (a) Determine the moment vector M_o that this force causes about the base of the pole at O. (b) Calculate the magnitude of the moment of F(vector) about the axis of the strut CD.
A basketball star covers 2.85 m horizontally in a jump to dunk the ball, Determine his horizontal velocity at the instant of takeoff
a river with a water temperature T(L)=20 degree C is to be used as the low temperature reservoir of a large power plant, what is the largest electrical output that the plant can deliver to its customers
A bartender slides a drink along a bar to a customer seated 3 metres away in the positive x direction. At what initial speed should the bartender send the drink
A small block with mass 0.0450kg slides in a vertical circle of radius 0.600m on the inside of a circular track. How much work was done on the block by friction during the motion of the block from point A to point B
An archer shoots an arrow toward a 300 g target that issliding in her direction at a speed of 2.00 m/s on a smooth, slippery surface. What is the speed of the arrow after passing through the target
Consider the motion of an apple and the Earth as the apple falls to the ground. If the apple begins at the top of a tree of height 11 m, Estimate the mass of an apple
A uniform density cube of mass m, side 2b, and center at C is placed on a fixed horizontal cylinder of radius r and center O in Earth's gravitational field.
A laser produces a 6.50-mW beam of light, consisting of photons with a wavelength of 621.9 nm. (a) How many photons are emitted by the laser each second? Incorrect: Your answer is incorrect. Your response differs significantly from the correct ans..
An object is placed 8cm in front of a converging lens with a focal length of 18cm. What is the lateral magnification
Starting from rest, a 2.3x10-4 kg flea springs straight upward. While the flea is pushing off from the ground, What is the flea's speed when it leaves the ground
A parallel plate capacitor has a capacitance of 8.0 µF when filled with a dielectric. estimate the dielectric constant of the dielectric
An 800 kHz radio signal is detected at a point 9.5 km distant from the transmitter tower. Find the average electromagnetic energy density
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