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A person who weighs 656 N is riding a 91-N mountain bike. Suppose the entire weight of the rider plus bike is supported equally by the two tires. If the gauge pressure in each tire is 6.90 x 105 Pa, what is the area of contact between each tire and the ground?
Lonnie pitches a baseball of mass .20 kg. The ball arrives at home plate with a speed of 40 m/s and is batted straight back to Lonnie with a return speed of 60-m/s. If the bat is in contact with the ball for .050 s, what is the impulse experienced..
When this capacitor is discharged through the strobe lamp, it transfers all its energy in 1.0x10-4 s. Find the power delivered to the lamp
Each plate of a parallel-plate capacitor is a square of side 3.89 cm and the plates are separated by 0.539 mm. Find the electric field strength inside the capacitor
suppose that we could use the energy released when 5 g of antimatter annihilates 5g of matter to lift a mass 3 km from the Earth's surface. how much mass can we lift? answer in unites of kg.
A polarized light beam, with a 7.33-mm-diameter circular cross section, is perpendicularly incident on an ideal polarizer, What force in piconewtons does the light exert on the polarizer
A bullet is fired from ground level with a speed of 150 m/s at an angle of 30 degrees above the horizontal. What is the velocity of the bullet while it is at the highest point of its trajectory.
A series RCL circuit includes a resistance of 291 ?, an inductive reactance of 685 ?, and a capacitive reactance of 409 ?. What is the voltage of the generator
The average force exerted on him by the ground is +18000 N, where the upward direction is taken to be the positive direction. From what height did the student fall? assume that the only force acting during the collision is that due to the ground.
Explain the valve minor loss coefficient and how you would go about determining K.
A block of mass m = 364 g is dragged with a string across a rough horizontal table. The string tension is T = 2.79 N, What is the power supplied by the force of friction
The length of a certain wire is doubled and at the same time it's radius is reduced by a factor of 2
A 15.00 block is attached to a very light horizontal spring of force constant 450 and is resting on a smooth horizontal table. Suddenly it is struck by a 3 stone travelling horizontally at 8 to the right, whereupon the stone rebounds at 2.00 horizont..
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