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Force F = (6.0 N) i hat + (-9.0 N) k hat acts on a pebble with position vector r = (0.90 m) j hat + (-0.6 m) k hat, relative to the origin.
(a) What is the resulting torque acting on the pebble about the origin?
(b) What is the resulting torque acting on the pebble about a point with coordinates (-2.0 m, 6.0 m, 3.0 m)?
three resistors of 75, 50 , 100 ohms are connected to a 9 volt source. determine the power dissipated by the circuit
Gold, which has a density of 19.32 g/cm3, is the most ductile metal and can be pressed into a thin leaf or drawn out into a long fiber, If a sample of gold with a mass of 2.477g, is pressed into a leaf of 4.116 ?m thickness, what is the area (in m2)..
what is the horizontal distance x between the two balloons.
An electric motor rotating a workshop grinding wheel at a rate of 93 rev/min is switched off. Assume the wheel has the constant negative angular acceleration of magnitude 2rad/s2.
The coefficient of kinetic friction is 0.250. Illustrate what should be the magnitude of P, so that the net work done by it and the kinetic frictional force is zero?
An electric dipole is formed from +/-4.0 nC point charges spaced 3mm apart. The dipole is cantered at the origin, oriented along the y-axis. What is an electric field strength at point (x,y) = ( 6.0 cm, 0 cm)
Just before the collision and in kilometers per hour, what was the speed of the rocket piece relative to the satellite if both were in circular orbits and the collision was (a) head-on and (b) along perpendicular paths.
An air-filled pipe is found to have successive harmonics at 1050Hz , 1350Hz , and 1650Hz, It is an open-closed pipe, so What is the length of the pipe
An isolated conducting sphere has a 13 cm radius. One wire carries a current of 1.0000048 A into it while another wire carries a current of 1 A out of it. How long in seconds would it take for the sphere to enhance in potential by 820 V.
A point charge, q1 = +2C, is placed at the origin (0m,0m), a second point charge, q2 = -3C, is located at (2m, 0m), and a third point charge, q3 = -4C, is located at (0m, 3m)
An electric dipole includes a charge of 4 ?C and a second charge. What is the total charge of the dipole?
Calculate the speed of a proton after it accelerates from rest through a potential difference of 160.
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