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Two identical piano wires have a fundamental frequency of 699 Hertz when kept under the same tension. Find what fractional increase in the tension of one wire will lead to the occurrence of 7 beats per second when both wires oscillate simultaneously?
a skier is gliding along at 4.0 ms on horizontal frictionless snow. he suddenly starts down a 14deg incline. his speed
an athlete executes a long jump leaves the ground at an angle of 25 degrees from the ground and lands 5.80m away.a what
A wire 3.00 m long and 0.450 mm2 in cross-sectional area has a resistance of 41 omegacap.gif at 20°C. what is the temperature coefficient of resistivity
A circular metal loop whose radius is 6:0 cm carries a current of 5:0 A. It is horizontal, while the earth's field points North and 60? below the horizontal. (The earth's field has a magnitude of about 0:50 Gauss, which is 0:5 10?4 T.
a solenoid that is 85.2 cm long has a radius of 1.67 cm and a winding of 1110 turns it carries a current of 4.46 a.
a certain toaster has a heating element made of nichrome resistance wire. when the toaster is first connected to a 100
A wooden raft has a mass of 76 kg. When empty it floats in water (density 1000 kg/m3) with 51 percent of its volume submerged. What mass of sand can be put on the raft without it sinking.
A magnetic field of strength 0.260 T is directed perpendicular to a plane circular loop of wire of radius 29.0 cm. Compute the magnetic flux through the area enclosed by this loop.
a certain region of space bounded by an imaginary closed surface contains no charge. is the electric field always zero
The components of velocity of an object moving in two dimensions are 40 m/s westward, and 28 m/s southward. What is the object's heading, in degrees
suppose a flat roof has a surface area of 1.38000times102 m2. presume the air inside the building and under the roof is
Your boss at the Cut-Rate Cuckoo Clock Company asks you whatwould happen to the frequency of the angular SHM of the balancewheel if it had the same density and the same coil spring, By what factor would the frequency change
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