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One of the 61.0cm -long strings of an ordinary guitar is tuned to produce the note B3 (frequency 245 Hz) when vibrating in its fundamental mode.
a) Find the speed of transverse waves on this string. (found it.. it's 299m/s)
b) If the tension in this string is increased by 2.5% what will be the new fundamental frequency of the string? (Can't figure out)
Analyze various philosophical approaches for ethical decision making, and the effectiveness and limits of each approach for making ethical choices and
A motorcycle is travelling at a constant velocity of 30ms. The motor is in high gear and emits a hum of 700Hz. find the period of the sound waves emitted from the motorcycle
A child and sled with a combined mass of 55.20 kg slide down a frictionless hill that is 7.84 m high at an angle of 26o from horizontal. The acceleration of gravity is 9.80 m/s2. If the sled starts from rest, what is its speed at the bottom of hil..
The balance wheel of a watch oscillates with angular amplitude 0.90? rad and period 0.68 s. Find the maximum angular speed of the wheel
The crankshaft in a race car goes from rest to 3360rpm in 2.0s . What is the crankshaft's angular acceleration
An ideal gas initially at 20°C and 199 kPa has a volume of 3.40 L. It undergoes a quasi-static, isothermal expansion until its pressure is reduced to 94 kPa. (a) Find the work done by the gas. J (b) Find the heat added to the gas during the expans..
Two charged dust particles exert a force of 8.5 x10-2 N on each other. What will be the force if they are moved so they are only one-seventh as far apart.
A circular disk of radius 0.010 m rotates with a constant angular speed of 5.0 rev/s. What is the acceleration of a point on the edge of the disk
A converging lens (f = 11.9 cm) is located 30.6 cm to the left of a diverging lens (f = -5.94 cm). calculate the overall magnification
You are standing 3.0 m from a convex security mirror in a store. Estimate the radius of curvature of the mirror
A car is driving directly north on the freeway at a speed of 117 km/h and a truck is leaving the freeway driving 76 km/h in a direction that is 40° west of north
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