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The length of a simple pendulum is 0.86 m and the mass of the particle (the "bob") at the end of the cable is 0.33 kg. The pendulum is pulled away from its equilibrium position by an angle of 9.0 ° and released from rest. Assume that friction can be neglected and that the resulting oscillatory motion is simple harmonic motion. Using the position of the bob at its lowest point as the reference level, determine the total mechanical energy of the pendulum as it swings back and forth
a football is kicked at ground level with a speed of 18m/s at angle of 35 to the horizontal. How much later does it hit the ground
A 0.100 m long solenoid has a radius of 0.050 m and 1.50 x104 turns. Determine the mutual inductance of this combination
A rectangular block of ice 12 m on each side and 1.2m thick floats in sea water. The density of the sea water is 1025 kg/m3. The density of ice is 917kg/m3.
A piece of thin spherical shell that has a radius of curvature of 92 cm is silvered on both sides. How far was the mirror moved
Two blocks are free to slide along the frictionless wooden track shown below. The block of mass m1 = 4.94 kg is released from the position shown, Calculate the maximum height to which m1 rises
You are shining ultraviolet light on a gas of an unknown element. You know that an electron starts in a ground state with an energy of -17.30 eV. What is the energy of the first photon emitted
1.two paths lead to the top of a big hill. one is steep and direct while the other is twice as long but less steep.
A proton ,a neutron and an alfa particle ,accelerated through the same potential difference ,enter a region of uniform magnetic field moving at right angles to B.(a) compare their kinetic energies .(b) if the radius of the proton’s circular path is 1..
A 1000 kg aircraft going 25 m/s collides with a 1500 kg aircraft that is parked and they stick together after the collision and are going 10 m/s after the collision. If they skid for 5.4 seconds before stopping, how far did they skid?
A 2.8-kg piece of aluminum at 28.5 degrees celsius is placed in 1.0 kg of water in a Styrofoam container at room temperature (20 degrees celsius)
Upton Chuck is riding the Giant Drop at Great America. If Upton free falls for 2.6 seconds, what will be his final velocity and how far will he fall
A woman is reported to have fallen113ft from a building, landing on a metal ventilator box, which she crushed to a depth of25in. Calculate the time it took to crush the box
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