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A spider hangs from a strand of silk whose radius is5.8x10-6 m. The density of the silk is 1100kg/m3. When the spider moves, waves travel along thestrand of silk at a speed of 310 m/s. Determine the mass of the spider.
Two masses traveling at the same speed v0 collide head on. Nothing is known about collision other than that it is not completely inelastic.
A heat engine is taking in 400 J from a hot reservoir that is at 20 degrees Celsius. It expels heat to a cold reservoir at 0 degrees Celsius> What is the ideal efficiency of the engine
A 45.6-kg girl is standing on a 155-kg plank. Both originally at rest on a frozen lake that constitutes a frictionless, flat surface. The girl begins to walk along the plank at a constant velocity of 1.40 m/s relative to the plank. (a) What is the ve..
Calculate the maximum allowable force that can be applied to stop a 1000 kg vehicle if the maximum allowable acceleration is 2.5 g.
With two fingers, you hold an ice cream cone motionless upside down the mass of the cone is m, and the coefficient of static friction between your fingers and the cone is? When viewed from the side, the angle of the tip is 2?
The height of a helicopter above the ground is given by h = 2.90t3, where h is in meters and t is in seconds. How long after its release does the mailbag reach the ground
A golf ball is dropped from rest from a height of 9.70 m. It hits the pavement, then bounces back up, rising just 6.00 m before falling back down again. calculate the total amount of time that the ball is in the air
The "literature" refers to books, journal articles, magazine and newspaper articles, company records and documents, and even personal interviews with knowledgeable industry conflict resolution experts.
Force F = (-1.0 N) + (1.0 N) acts on a particle with position vector r = (5.0 m) + (5.0 m). What is the torque on the particle about the origin
A rectangular block of wood, 10 cm*15 cm*40 cm, has a specific gravity of 0.6. What fraction of the block is submerged
The depth of the ocean is sometimes measured in fathoms (1 fathom = 6 feet). Find the volume of water (in cubic meters) beneath this rectangle
An ideal gas has a volume of 0.20 m3, a temperature of 30 oC, and a pressure of 1.0 atm. What is the new pressure
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