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1. A 2-m-long, 4-cm-diameter shaft rotates inside an equally long 4.02-cm-diameter cylinder. If SAE-10W oil at 25-C fills the gap between the concentric cylinders, determine the torque and horsepower needed to rotate the shaft at 1200 rpm. 2. A 0.1-m3 volume of water is observed to be 0.0982 m3 after a pressure is applied. What is that pressure? 3. How long would it take a small wave to travel under 22-C water a distance of 800 m?
A marksman holds a rifle of mass 3.00 kg loosely in his hands, so as to let it recoil freely when fired. He fires a bullet of mass 5.00 g horizontally with a velocity 300 m/s. What is the recoil velocity of the rifle.
Two flat surfaces are exposed to a uniform, horizontal magneticfield of magnitude 0.65 T. The first surface is tilted at an angleof 23° from the horizontal, and a net magnetic flux of 6.0 x10-4 Wb passes through it.
A taut rope has a mass of 0.170 kg and a length of 3.55 m. What power must be supplied to the rope to generate sinusoidal waves having an amplitude of 0.110 m and a wavelength of 0.490 m, traveling with a speed of 31.0 m/s?
Violet light and red light travel through air and strike a block of plastic at the same angle of incidence. find the index of refraction for violet light in plastic
A g215 g sample of a substance is heated at 330 degree celcius and then plugged into 105 aluminum calorimeter cup containing 165 g of water and a 17 g glass thermometer at 125 degree C. the final temperature is 35 degree C. what is the specific heat ..
the width of the central peak of a single-slit diffraction pattern can be characterized by the distance of the
The efficiency of a certain machine is 0.50. If the cold temperature is 527 degrees celsius, what is the HOT temperatur
An electron enters a region of space containing a uniform 0.0000125-T magnetic field. Its speed is 195 m/s and it enters perpendicularly to the field. Find the radius of the electron\'s orbit
The mass of a certain planet is 3.00 multiply.gif 1026 kg. What is the mean orbital radius of this second moon
a weightlifter works out at the gym each day. part of her routine is to lie on her back and lift a 41kg barbell
A 100 gram bead is free to slide a long a piece of 0.8 m long string ABC. the ends of the string are attached to a vertical rod at point A and B, which are o.4m apart. when the rod is rotated, BC is Horizontal and equals to 0.3m. (a) what is the t..
a frictionless pulley which can be modeled as a 0.80 solid cylinder with a 0.30 m radius has a rope going over it. The tension in the rope is 10 N on the right side and 12 N on the left side. What is the angular acceleration of the pulley.
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