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A 200 kg body is pulled up an inclined plane 15 m long and 5 m high. The force required to pull the body up the plane at a slow uniform speed is 976 N. compute the ideal mechanical advantage, the actual mechanical advantage and the efficiency of the plane under these conditions.
a stone with a mass of 0.80 kg is attached to one end of a string 0.90 m long. Find the maximum speed the stone can attain without breaking the string
A stationary mass M decays into a particle and a photon. If the speed of the particle is v, what is its mass? What is the energy of the photon?
A spinning disk of mass 5.0 kg and radius 0.25m is rotating about an axis through its center at 400 rev/min. a.) What is the angular velocity of the disk in rad/s?
A solid homogeneous sphere of mass M = 3.20 kg is released from rest at the top of an incline of height H=1.57 m, Determine the rotational kinetic energy of the sphere at the bottom of the incline
A particle (Mass=m, charge=e, and Energy=E) is incident on a potential barrier from x
A plane mirror is lying flat in the x-y plane with its reflecting surface facing up. A point source of light is located at (x=0.0 m, y=2.0 m, z=3.0 m). What is the distance from the object to the image
As light with a frequency of 4.286 x 10^14 Hz passes from air into a diamond, its speed v is 0.413 time in air is the same as the speed in vacuum which c= 3.0 x10^8, Calculate the value of wavelenghth of the light in air
For a safe re-entry into the Earth's atmosphere, the pilots of a space capsule must reduce their speed from 2.6 × 104 m/s to 1.1 × 104 m/s. For how long must they fire their engine
A rigid vessel contains ammonia as liquid and vapor in equilibrium at 8 bar with a quality of 0.02. The mass of liquid ammonia is 1000 kg. How much volume does the liquid ammonia occupy
The bar is held by a cord that makes a 90? angle with respect to bar and 50 ? with respect to wall. Illustrate what is the magnitude of the horizontal force Hx on the pivot? The acceleration of gravity is 9.8 m/s2.
Sketch a force diagram for the desk.
James Bond (90 kg), outtted with perfectly matching skis and skiware, is at the top of a steep slope that a secret spy like him can easily handle. Determine the speed of Bond at position B abd C
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