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A metal rod 6 meter long is held in a horizontal position. An object with mass 2.80 kilogram is suspended from a light rope that is attached 4 meter from the left-hand end of the rod. Take counterclockwise torques to be positive. For an axis at the right-hand end of the rod, find the torque exerted on the rod by the tension in the rope?
Capacitors C1 = 6.03 uF and C2 = 2.45 uF are charged as a parallel combination across a 298 V battery, Calculate the resulting charge on capacitor C2
A spaceship traveling at speed .5c towards earth ejects a spacepod traveling in the forward direction at speed .25c relative to the spaceship, what is the speed of the light signal relative to the earth in terms of c
On an icy road, a 1600 kg car moving at 53 km/h strikes a 470 kg truck moving in the same direction at 27km/h. Find the speed of the wreckage
A speed skater moving across frictionless ice at 8.4 m/ s hits a 5.2 m -wide patch of rough ice. She slows steadily, after that continues on at 6.3 m/s.
A beam of light is emitted in a pool of water from a depth of 64.0 cm. How far away, relative to the spot directly above it, must it strike the air-water interface in order that the light does not exit the water?
Spider silk has a Young's modulus of 4.0x10^9 N/m^2 and can withstand stresses up to 1.4x10^9 N/m^2. what angle does the web make with the horizontal
You are trying to land your spaceship upon an unknown planet. Determine the mass of the spaceship and Find the approximate gravitational acceleration provided by the planet
A rock is tossed straight up with a speed of 29 m/s. How long is the rock in the air, from the instant it is released until it hits the bottom of the hole
A car's starter motor draws 55 A from the car's battery when starting up. If the start-up time is 2.4 s, how many electrons pass a location in the circuit during that time
A juniper wood plank measuring 7 ft by 0.6 ft by 0.3 ft is totally immersed in water. What is the net force acting on the plank
A string of 20 identical Christmas tree lights are connected in series to a 120 Volt source. Find the resistance of a single light
Two wheels have the same mass and radius of 4.5 kg and 0.39 m, respectively. determine the net external torque that acts on each wheel
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