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A block is located on a frictionless plane that is inclined at an angle of 20 degrees. It is held in place by a rope parallel to this plane and which ahs a tension of 100 N. What is the weight of the block?
An engine inlet decelerates the flow from M = 0.82 to M = 0.34 at the 3.5-ft diameter compressor face. What diameter should the inlet be
Demonstrate that gravitational energy is not extensive: show that the gravitational energy of a sphere of radius 'r' and uniform density varies with volume V^n and find the exponent 'n'.
A 3.00-g bullet traveling horizontally at 413 m/s hits a 28.0-g wooden block, compute The speed of the block after the collision
the speed limit on a particular stretch of road is 30 miles per hour. express this speed limit in millifurlongs per
An object initially at rest breaks into two pieces as a result of an explosion. One piece has twice the kinetic energy of the other piece. What is the ratio of the masses of the two pieces
A water pipe decreases in diameter from 16 cm to 8 cm. In the wider section the average velocity is 30.0cm/s. determine the volume rate in the narrow section
suppose you throw a 0.053-kg ball with a speed of 11.3 ms and at an angle of 31.5deg above the horizontal from a
A pair of slits separated by 1.3 mm, are illuminated with monochromatic light of wavelength 573 nm. What is the thickness of the glass
2750 g of lead at 120 degrees C is added to .150 kg of 85 degrees C water. The heat of vaporization for water is 22.6 X 10^5 J/kg. How much water (in kg) evaporates
Calculate the current flowing in the U-shaped conductor. Calculate the external force needed to keep the rod's velocity constant at that instant.
A block of wood in the shape of a cube, 5.0 cm on a side, is floating in water with its top face parallel to the surface of the water. With a ruler, What is the density of that piece of wood
an electron microscope accelerates an electron (mass of electron is 9.11x10^-31 kg) from rest to 2.8 x 10^7 m/s in a distance of 2.80 cm, what is the average force on the electron
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