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A weight (with a mass of 67 kg) is suspended from a point near the right-hand end of a uniform boom with a mass of 73 kg. To support the uniform boom a cable runs from this same point to a wall (the left-hand vertical coordinate in the figure) and by a pivot on the same wall at an elevation of 6 m. Calculate the tension T in the cable. The acceleration of gravity is 9.8 m/s2. Answer in units of N.
A cylindrical piece of metal 8.50 cm tall with a radius of 1.95 cm has a specific gravity = 4.0, what is the mass of the cylinder in units of grams
Wikipedia indicates the approximate energy released by an earthquake relative to the destructive power of TNT With reasonably large quakes (> 4.0 on the Richter Scale), the energy dissipated is of the order of Giga-joules. If a seam (Uranium, Thor..
A relatively loud sound can be created because a standing wave occurs in the bottle. Explain why the pitch of the sound becomes higher
q1. in a crash test a 1300 kg car slams into a concrete wall at 18.8 ms and comes to rest in 0.275 s. a find the
A cat stands on a board of wood in a frozen frictionless pond. The mass of the cat is 4.0 kg, and the mass of the board is 3.0 kg. how far does the cat move in relation to the pond
A long jump shot is released 2.5 meter above the ground, 6.13 meter from the base of the basket, which is 3.05 meter high. determine the speed needed to make the basket
A model rocket engine has an average thrust of 5.26 N. It has an initial mass of 25.0 g, which includes fuel mass of 12.3 g. What is the average exhaust speed of the engine
A steel section of the Alaskan pipeline had a length of 55.5 m and a temperature of 19.0 deg C when it was installed. What is its change in length
The filament of an incandescent light bulb typically has a temp of 2,850K. Find lamda max. Is this the wavelength within the visible band? Plot B lamda for this temp, using linear axes.
What is the period of oscillation of the scale? State your reply numerically in seconds.
a current of 0.97a flows through a copper wire 0.44mm in diameter when it is connected to a potential difference of
An electron in the hydrogen atom makes a drop from n = 3 to m = 2. What wavelength of photon is emitted
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