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Q. A 340 g air track cart traveling at 1.25 m/s collides elastically with a 300 g cart traveling in the opposite direction at 1.33 m/s. What is the speed of the 300 g cart after collision?
Q. A 120 ohm resistor a 60 ohm resistor and a 40 ohm resistor are connected in a parallel to a 120 volt power source. what is the current running through the entire circut?
A Ferris wheel is a vertical, circular amusement ride with radius 6 m. Riders sit on seats that swivel to remain horizontal. The Ferris wheel rotates at the constant rate, going around once in 6.4 s. Consider a rider whose mass is 70 kg.
What is the magnitude of the electric field at this point?
How long does it take an automobile travelling 56.50 km/h to become even with a car that is travelling in another lane at 36.50 km/h if the cars' front bumpers are initially 148m apart.
An extension cord made of two wires of diameter 0.129 {rm cm} (no. 16 copper wire) and of length 1.5 m (5 ft) is connected to an electric heater which draws 13.5 A on a 120-{rm V} line. How much power is dissipated in the cord.
How much heat energy can created throughout motion
A bartender slides a beer mug at 1.30 m/s towards a customer at the end of a frictionless bar that is 2.0m tall. The customer makes a grab for the mug and misses, and the mug sails off the end of the bar.
Coefficient of linear expansion for aluminium
A flight attendant pulls her 73 N flight bag a distance of 245 m along a level airport floor at a constant velocity. The force she exerts is 45 N at an angle of 54° above the horizontal.
Two radio antennas are separated by 2.00 m. Both broadcast identical 750MHz waves. If you walk around the antennas in a circle of radius 10.00 m, how many maxima will you detect.
Where is center of mass of the system
Compute coefficient of kinetic friction
Find out the object position p for the image to be erect and 7 times the size of the object. Focal length is 46 cm.
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