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A meter stick is freely pivoted about the 20 cm mark. Find the frequency of small amplitude oscillations?
two resistors r1 and r2 are in series with a 7.8 volts battery. if r1 has a resistance of 2.0 omega and r2 receives
A bicyclist is sitting on her bike on the side of the road when she sees her friend riding up behind her on his bike at a constant speed of 6.9 m/s. How long does it take her to catch up with him
A ball with a mass of 0.65 kg is dropped on a table. The initial height of the ball is 0.85 meters. Calculate the change in the momentum of the ball during its collision with the table
An ideal gas is taken through a quasi-static process described by P = alphaV2, How much work is done on the expanding gas in this process
A toy racing car moves with constant speed around the circle. When its coordinates are x = 0, y = 3m its velocity is (6m/s) i. When itis at x = -3m, y = 0m what is its velocity and acceleration? Usingi, j, k notation to give answer.
A 40 g ball of clay traveling east at 5 m/s collides with a 80 g ball of clay traveling 30 degrees south of west at 1 m/s. What are the speed and direction of the resulting 120 g ball of clay?
Suppose a heat engine takes in 420 J of energy from a hot reservoir and performs 30 J of work in each cycle.
A railroad car of mass 2.58 104 kg is moving with a speed of 3.88 m/s. It collides and couples with three other coupled railroad cars, What is the speed of the four cars after the collision
The terminal speed of a sky diver is 124 km/h in the spread-eagle position and 338 km/h in the nosedive position. Assuming that the diver's drag coefficient C does not change from one position to the other
The average speed of a nitrogen molecule in air is about 6.70 * 10^2 m/s, and its mass is about 4.68 * 10^-26 kg. What average force does the molecule exert on the wall
the hall voltage across a conductor in a 55.0 mt magnetic field is 1.90 mv. when used with the same current in a
If the mass of both weights is 175gm, the first mass is located 20 north of east, the second mass is located 20 south of east, and the transducer sensitivity is 0.5volts/Newton, how large a voltage do you expect to measure? Imagine the transducer ..
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