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An organ pipe is open at both ends. It is producing sound at its fifth harmonic, the frequency of which is 307 Hz. The speed of sound is 343 m/s. What is the length of the pipe?
assume that for the couple in, you were told that the girl's mass was two-thirds that of the boy. The boy has a velocity of v = +0.61 m/s. What would be the girl's velocity in this case.
A car is traveling 23 m/s when the driver sees a child standing in the road. He takes 0.8 s to react, then steps on the brakes and slows at 6.0 m/s2. Explain how far does the car go before it stops?
A major-league pitcher can throw a baseball in excess of 44.6 m/s. If a ball is thrown horizontally at this speed, how much will it drop by the time it reaches catcher who is 18m away from the point of release.
Assume that the only force acting on him throughout the collision is that as a result of the ground.
While a force of 6.0 N is applied, pulling the spring to the right, the elongation of the spring is 0.030m from its equilibrium position. What is the force constant of the spring
A 25 kg child on a 2.0 m swing is released from rest when the swing supports make the angle of 30.0 degrees with the vertical.
What is the magnetic field strength
A 0.25 m long wrench is placed around a bolt and a 20 N force is applied halfway along the wrench at an angle of 30 degrees, What is the torque (in Nm) applied to the bolt from this force
A.) What is the total negative charge, in coulombs, of all the electrons in a small 1.00 sphere of carbon? One mole of is 12.0 , and each atom contains 6.00and 6.00 electrons.
Consider Iron asteroid (density 7900 kg/m^3) shaped like a cylinder 5.0 km long and 3.0 km in diameter, How much fuel is required to spin up the asteroid
You throw a 20-N rock vertically into the air from ground level. You observe that when it is a height 15.4m above the ground, Use the work-energy theorem to find its maximum height
A certain toaster has a heating element made of Nichrome resistance wire, What is the final temperature of the heating element
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