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A 7.00 N window washer is standing on a uniform scaffold supported by a vertical rope at each end. The scaffold weighs 200.0 N and is 3.00 m long. What is the force in each rope when the window washer stands 1.00 m from one end?
An engine has a hot reservoir temperature of 900 K and a cold reservoir temperature of 608 K. What is the efficiency of the engine
A miniature 200 g monkey skis 150 m down a 25 degree inline on a 400 g sled. Use energy methods to find the final speed of the monkey
Monochromatic light with wavelength 570nm passes through a circular aperture with diameter 7.00?m. What is the diameter of the Airy disk on the screen
A refrigerator does 18.0 kJ of work while moving 115kJ of thermal energy from inside the refrigerator. what is its coefficient of performance
A 9.22 kg ball, hanging from the ceiling by the light wire 145.00 cm long, is struck in an elastic collision by a 1.20 kg ball moving horizontally at 6.46 m/s just before the collision.
The first two dark fringes on one side of the central maximum in a single-slit diffraction pattern are 1.0 mm apart. What is the slit width
The 200 g head of a golf club moves at 40 m/s in a circular ARC of 1.2 m radius. How much force must the player exert on the handle of the club to prevent it from flying out of her hands at the bottom of swing? Ignore the mass of the club's shaft.
Find out the resulting values of the processional rate
In a 6.5×10?3-m3 volume of ideal gas at the pressure of 2.7×106 Pa, How many molecules are in the sample
Two tanks are engaged in a training exercise on level ground. The first tank fires a paint-filled training round with a muzzle speed of 240m/s at an angle 13.4, Find the distance between the tanks when the round was first fired
The beam from a diode laser is used to investigate the refraction of a piece of plastic. Determine the wavelength of the light in the plastic in nanometers (nm).
Two 50.0 N weights are suspended at opposite ends of a rope that passes over a light, frictionless pulley, find the tension in the rope and chain
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