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Standing waves on a string are generated by oscillations having amplitude 0.005 m, angular frequency 942 rad/s, and wave number 0.750p rad/m.a.) What is the equation of the standing wave?b.) At what distances from x=0 are the nodes and antinodes?b.) What is the frequency of a point on the string at an antinode?c.) If the string is 4m long, how many nodes are there?
What is the greatest distance foot of the ladder can be placed from the base of the wall without the ladder immediately slipping.
Using focused laser light, optical tweezers can apply a force of about 14pN to a 1.1\mu m diameter polystyrene bead, Estimate the bead's acceleration in g's
while walking between gates at an airport you notice a child running along a moving walkway. estimating that the child
A meter stick supported at the 50 cm mark has masses of 300 g & 200 g hanging from it at the 10-cm & 60-cm mark, respectively. Where should we hang a third, 400-g mass to keep the meter stick balanced?
A board of mass 20 kg and length 4 m is supported by two scales, one a t the left end of the board, and the other at 3 m from that end. What is the reading on the scale at the left end
A circular disk has surface charge density 8.0nC/cm^2. What will the surface charge density be if the radius of the disk is doubled? Express your answer to two significant figures and include the appropriate units.
A current of 0.307 A through your chest can send your heart into fibrillation, ruining the normal rhythm of heartbeat, how many conduction electrons pass through your chest
an electron in a certain region of space has an electric potential energy given by ux 7.6010-15 jx 4.8010-16 jmx3 in
You rub an inflated balloon on the carpet and it acquires a potential that is 1560 V lower than its potential before it became charged. what is the net charge on the balloon
an object is located 23.0 cm to the left of a diverging lens having a focal length f -30.0 cm. use the correct sign
Two long parallel wires carry currents of 20 A and 5.0 A inopposite directions. The wires are separated by 0.20 m. What is the magnetic field midway between the two wires?
An explosion of a 10.0-kg bomb releases only two separate pieces the bomb was initially at rest and a 4.00-kg piece travels westward at 100 m/s immediately after the explosion. What are the speed and direction of the other piece
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