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A 1000kg car goes around a sharp turn of radius of curvature of 25.0m. Given that the coefficient of friction between the tires and the roadway is 0.550. What is the fastest speed that the car can safely make the turn?
an electric motor operating at 200 v draws a current of 5 a at its full speed. the resistance of the amature is 10 ohm.
A coil with length of 11 cm and a cross-section of 2.3 cm is connected in series with a 8.0k? resistor. A 42.0 V battery is applied across the two devices, What is the energy density inside the coil
The circuit in the figure below consists of wires at the top and bottom and identical metal springs in the left and right sides. estimate the magnitude of the magnetic field
Suppose we have a cube of resistors (12 resistors total) all the same resistance R connects as in the figure to left. Find the equivalent resistance between the two diagonally opposite corners
A baseball is thrown upwards at a 45o angle with respect to the ground. Its initial speed is 25 meter per second. Determine how high above its starting point will it reach
The pilot of an aircraft wishes to fly due west in a 48.6km/h wind blowing toward the south. The speed of the aircraft in the absence of a wind is 174 km/h. How many degrees from west should the aircraft head? Let clockwise be positive. Answer in d..
Old Faithful geyser in Yellowstone Park erupts at approximately 1 hr intervals, and the height of the fountain reaches 40.0 m. The speed of the water as it leaves ground level is 28m/s. What is the pressure (above atmospheric pressure) in the heated..
A 2000 kg car moving east at 10.0 m/scollides with a 3000 kg car moving north. The cars stick togetherand move as a unit after the collision, at an angle of 36.0° north of east and at a speed of 4.94 m/s. Find the speed of the 3000 kg car before t..
An extremely light rod 1.00 m long has a 2.00-kg mass attached to one end and a 3.00-kg mass attached to the other. find the moment of inertia of the system about the fixed axis
Find out the coefficient of static friction
Two mirrors are placed 1.0 m apart, with their surfaces parallel. Suppose that light of intensity Io is initially incident on one mirror, normal to its surface. How long does this take
A 20 cm radius air duct is used to replenish the air of a room 9.2 m multiplied by 5.5 m multiplied by 5.0 m every 10 min. How fast does air flow in the duct
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