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Q. Two identical positive charges exert a repulsive force of 6.6 10-9 N when separated by a distance of 5.4 10-10 m. what is the charge of each?
Q. A 400g lemming waddles horizontally off a small 4.9m high cliff with a horizontal velocity of 0.5m/s.
a. How far from the base of the cliff will the lemming land?b. What will be the lemming's speed just before landing?c. What is the lemming's kinetic energy just before landing?
Estimate the capacitance of the series combination of capacitors shown.
A car of mass 1110 kg travels at a speed of 20 ms-1 along a straight road. The driver sees a red traffic light ahead, and applies brakes. The coefficient of friction between the car tyres and the road is 0.83. Take the acceleration due to gravity to ..
A 0.410kg block is attached to a horizontal spring that is at its equilibrium length, and whose force constant is 22.0N/m . The block rests on a frictionless surface. A 6.00×10^2kg wad of putty is thrown horizontally at block, hitting it with a s..
What is current temperature and peak wavelength What is the proper description of their situation
An air traffic controller has two aircraft on radar. The first is at an altitude of 0.5 km, a horizontal distance of 3 km measured along the ground to the point directly underneath the plane, and a bearing of 115° west of north.
Determine the power distribution in carrier and sidebands if the transmitted power is 1,000 W and mf = 1.
Two horizontal forces, 218 N and 157 N, are exerted in opposite directions on a crate. What is the net horizontal force on the create? Be sure to indicate the direction of the net force. (Assume that the 218 N forces are in the positive direction.)
Released from rest at the same height, a can of frozen juice rolls to the bottom of the same hill. What is the translational speed of the frozen juice can while it reaches bottom.
What is sign and magnitude of charge
Two wires are identical, except that one is aluminium and one is gold. The aluminium wire has a resistance of 0.18. What is resistance of the gold wire.
What is braking distance for the first train
A 2.46 x 10-2-kg block is resting on a horizontal frictionless surface and is attached to a horizontal spring whose spring constant is 110 N/m. The block is shoved parallel to the spring axis and is given an initial speed of 10.4 m/s, while spring is..
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