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The belt passing over the pulley is subjected to two forces F1 and F2 , each having a magnitude of 40N . F1 acts in the direction -k. Replace these forces by an equivalent force and couple moment at point A. Express the result in Cartesian vector form. Take theta = 45 (deg). r=80mm, 300mm from A. a)Determine the magnitude of the resultant force. b)Determine the moment of the resultant forse about the point A.
Two cars start from rest at a red stop light. When the light turns green, both cars accelerate forward. The blue car accelerates uniformly at a rate of 5.4 m/s2 for 4.7 seconds. What is the acceleration of the yellow car
starting from rest, a basketball rolls from the top to the bottom of a hill, reaching a translational speed of 5.1 m/s. What is the height of the hill
A 200 ohm resistor is rated at 1/4 W. What is the maximum voltage that should be applied across it
A parallel-plate air capacitor has a capacitance of 500 pF and a charge of magnitude 0.150 mu C on each plate. What is the surface charge density on each plate
You are piloting a spacecraft whose total mass is 1170 kg and attempting to dock with a space station in deep space. How long should you sustain the firing of the retro-rocket
Suppose we have an electron that is initially at rest in a uniform electric field with a magnitude of 7320 V/m. How fast is the electron moving at the position where it has moved the 14.0 cm above
Two 7.0mm×7.0mm electrodes with a0.10-mm-thick sheet of Mylar between them are attached to a 9.0V battery. find the charge before and after the Mylar is withdrawn
A closed Gaussian cylinder sits centered around the z-axis and above the xy-plane with a length of A and a radius of R, What is the net charge contained in the cylinder
Unpolarized white light is incident on a polarizer and then falls on an analyzer whose TA (Transmission Axis) makes an angle of ? = 40.4? with the polarizer. What is the fraction of the original light transmitted through both the polarizer and anal..
To the Amazon (EPM = Evil Physics Monkey) With his limited resources the EPM decides that the best way to get to his chosen destination (the Amazon rain forest) is by hot air balloon. How many moles of air are in the balloon
Determine the length of a copper wire that has a resistance of 0.172 Ohms and cross-sectional area of 7.85 × 10^-5 m^2. The resistivity of copper is 1.72 × 10^-8 Ohms m
An internal explosion breaks an object, initially at rest,into two pieces, one of which has 1.5 times the mass of the other. how much kinetic energydid each piece acquire
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