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Orb spiders make silk with a typical diameter of 0.15 .A typical large orb spider has a mass of 0.50 .
a) If this spider suspends itself from a single 12-cm-long strand of silk, by how much will the silk stretch?
b) What is the maximum weight that a single thread of this silk could support?
A plane is flying southeast at 200 km/h. Suddenly, it encounters wind heading 40 degrees north of east at 35 km/h. What is the planes new velocity
A machine shop has 120 equally noisy machines that together produce an intensity level of 92 dB. how many machines must be turned off
Consider two parallel wires placed 0.0430 m apart. One wire carries a current of 6.16 A and the other wire carries a current of 7.88 A. Find the force per length
Calculate the magnetic field at the observation location. The space shuttle releases a satellite into the circular orbit 565 above the Earth. How fast must the shuttle be moving (relative to Earth) when the release occurs.
A square loop has sides 12 cm long and is wound with 50 turns of wire carrying 250 mA of current. what torque does the loop experience
A computer to be used in a satellite must be able to withstand accelerations of up to 25 times the acceleration due to gravity. What is the minimum amplitude of vibration that must be used in this test
A textbook of mass 2.10kg rests on a frictionless, horizontal surface. A cord attached to the book passes over a pulley whose diameter is 0.190m, What is the tension in the part of the cord attached to the book
question1the ozone concentration in an atmosphere is measured in dobson units. we say that the amount of ozone is 1 du
Two point charges are placed on the y axis as follows: charge q1= -1.50 nC at y= -.600m, What is the net force (magnitude and DIRECTION) exerted by these two charges on a third charge
A 0.347-nm photon collides with a stationary electron. After the collision, the electron moves forward and the photon recoils backwards. Find the momentum of the electron
A semicircle of radius a is in the first and second quadrants, What is the direction of the net electric field at the origin produced by this distribution of charge (+x,-x,+y,-y direction)
A frictionless pulley (I=1/2MR^2) has a mass of 2.50kg and a radius of 20.0cm. how much kinetic energy does the stone have
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