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A block of mass 3.1 kilogram rests on a frictionless inclined plane, held in place by a string of mass 0.023 kilogram. The angle of the plane from the horizontal is 32 degree, and the string length is 1.5 meter. Determine how long does it take a wave to travel from one end of the string to the other? Note: Since the string is so much less massive than the block, the mass of the string can be neglected when computing its tension.
A particle with charge –3.24 × 10-6 coulombs is released at rest in a region of constant, uniform electric field. Assume that gravitational effects are negligible. At a time 2.36 seconds after it is released, the particle has a kinetic energy of 1.28..
A soccer ball, which has a circumference of 70.0 , rolls 11.0 in 3.30. What was the average angular speed of the ball during this time
A speedboat starts from rest and accelerates at +2.01 m/s2 for 7.40 s. What is the velocity of the boat at t = 21.8 s
A 1.5 m cylinder of radius 1.1 cm is made of a complicated mixture materials. Its resistivity depends on the distance x from the left and obeys the formula p(x)=a+bx^2, What is the resistance of the rod
Suppose that the object rolls withoutslipping. If the size of the object is negligible and the radius ofthe loop is R, find the minimum height from which the objectmust be released, so that it does not loose contact, if itis
A 6080 kg space probe moving nose-first toward Jupiter at 105 m/s relative to the Sun fires its rocket engine, ejecting 80.0 kg of exhaust at a speed of 253 m/s relative to the space probe. What is the final velocity of the probe?
A man strides across a bed of embers. Assume the glowing charcoal is covered with a thin layer of ash 0.50 mm thick and is at a temperature of 650C. The thermal conductiviity of ash and charcoal is 1.5 W/ (mxK). (a) Estimate the heat transferred t..
An RLC circuit is used to tune a radio into an FM station broadcasting at 88.5 MHz. Theresistance in the circuit is 12.0 Ωand the capacitance is2.80 pF. What inductance should bepresent in the circuit?
Ryan (60kg) started from rest and ran down a sand dune. His weight and his feet gave a 355N force down the incline while friction gave a 200N force up
Find the electric and magnetic field amplitudes in an electromagnetic wave that has an average energy density of 2.7 J/m3. electric field
A person stands at a point 300 m in frontof the face of a sheer cliff. If the person shouts, how much time will elapse before an echo is heard
A pipe open at both ends has a fundamental frequency of 120 Hz. what is the fundamental frequency of this pipe
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