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A spider hangs from a strand of silk whose radius is5.8x10-6 m.The density of the silk is 1100 kg/m3.When the spider moves, waves travel along the strand of silk at aspeed of 310 m/s. Determine the mass of the spider.
The leader of a bicycle race is traveling with a constant velocity of +11.2 m/s and is 10.4 m ahead of the second-place cyclist. The second-place cyclist has a velocity of +9.50 m/s and an acceleration of +1.20 m/s2. How much time elapses before h..
a 4500 kg helicopter accelerates upward at 2.0m/s^2. what lift force is exerted by the air on the propellers
A child knocks a 1.2 kg vase off of a table 1.5 m above the ground. What impulse did the floor exert on the vase
what orientation of the coil allows current to flow? what happens as you rotate the windings 180 degrees from this
One vessel contains a mixture of 5 parts pure wine and 3 parts soda, whereas the other vessel contains a mixture of 9 parts pure wine and 5 parts soda. Compare the strength of the wine.
What is the magnitude of the electric field at the centre ofa square of side 45.00 cm if one corner is occupied by a chargeQ1 = 20.00 uC and the other three corners areoccupied by three charges each of charge Q2=-20.00 uC.
Someone throws a rock at a clock 5 meters away from them. The rock is thrown at a height of 120cm. The velocity that it reaches is 25 m/s. By how much did she miss the center of the clock
A certain string can withstand a maximum tension of 31 N without breaking. A child ties a 0.33 kg stone to one end and, holding the other end, What is the speed of the stone as the string breaks
question1a small metal sphere carrying a net charge of -3.00 is held in a stationary position by insulating supports.
A 769-kg satellite is in circular orbit around the Earth and moving at a speed of 1.11 km/s. How much work must be done to move the satellite
A farsighted man uses eyeglasses with a refractive power of 1.90 diopters. Wearing the glasses 0.03 m from his eyes, What is the correct contact lens prescription, in diopters
The potential of a typical storm cloud can be as high as 109 volts. When lightning is produced, a typical lightning strike can produces an electric current of 20,000 amps.
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