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A 1200N uniform boom at 65 to the horizontal is supported by a cable at an angle of 25. The boom is pivoted at the bottom, and the object of the weight w= 2000N hangs from its top.
a) find the tension in the supported cable
b) the components of the reaction force exerted by the pivot of the boom.
A recent tomb has been unearthed in Egypt that shows the set of wall paintings and hieroglyphics of stars falling to and rising above the horizon over the course of the year (these stars served as sentinels for the pharaoh's passage through the un..
Wavelengths of light from a remote galaxy are found to be 1.5 % longer than the corresponding wavelengths measured here on earth. What ids the speed of the galaxy relative to earth
A space station is constructed in the shape of a hollow ring of mass 5.90 104 kg and radius 140 m. The station has 300 crew members (each with average mass 65kg), How much work is done to get the space station spinning
Find the acceleration of an elerton in this field. What is its speed after 50ms.
A charged paint is spread in a very thin uniform layer over the surface of a plastic sphere of diameter 12.0 cm, determine find the electric field just inside the paint layer
explain how much charge is on each plate. What is the work done by the field on the electron.
An airplane is flying in a jet stream that is blowing at 45.0 m/s in a direction 15 degrees south of east. What is the airplane's speed relative to the air mass
A baseball player hits a double and ends up on second base. A baseball "diamond" is a square, each side of length 27.4 m, with home plate and the three bases on the four corners. What is the magnitude of the player's displacement?
An ac generator with a frequency of 1.54kHz and an rms voltage of 22.2V is connected in series with a 1.90k, What is the power factor for this circuit
A concave mirror has a radius of curvature of 24cm. Determine the object position for which the resulting image is upright, draw a ray diagram to determine the position of the image
An X-ray tube gives electrons, which start at rest, a constant acceleration over a distance of 23cm. If their final speed is 1.3 x 107 m/s, what are the time they spend accelerating
What is the net charge inside the sphere.
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