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A violin string 30.00 cm long and fixed at both ends oscillates in its n = 1 mode. The speed of waves on the string is 280 m/s, and the speed of sound in air is 348 m/s.
a. What is the frequency of the emitted sound wave? (Hz)
b. What is the wavelength of the emitted sound wave? (m)
A massless string runs around two massless, frictionless pulleys. An object with mass m = 12.20 kg hangs from one pulley. A force F is exerted on the free end of the string. What is the magnitude of the force F if the object is lifted at the constant..
Two resistors, of R1 = 2.93 ? and R2 = 6.69 ?, are connected in series to a battery with an EMF of 24.0 V, Find the current I1 through the first resistor
An Automobile engine slows down from 4500 rpm to 1200 rpm in 2.50 s. Calculate (a) its angular acceleration, assumed constant and (b) total number of revolutions the engine makes in this time.
What are (a) x component and (b) y component of a vector in the xy plane if its direction is 329° counter clockwise from the positive direction of the x axis and its magnitude is 9.0 m.
A bottle has a mass of 31.00g when empty and 97.94g when filled with water. what is the specific gravity of the other fluid
Two newly discovered planets follow circular orbits around a star in a distant part of the galaxy, What is the orbital period of the faster planet, in years
Whats the coefficient of the kinetic friction of the tire. What is the acceleration of the car.
The brakes are applied and the bicycle is brought to a uniform speed. During braking , the bicycle covers a translational distance of 10m, Evaluate how many turns that each wheel would make during braking.
wheel A of radius rA = 11 cm is coupled by belt B to wheel C of radius rC = 20 cm. The angular speed of wheel A is increased from rest at a constant rate of 1.6 rad/s2. Find out the time needed for wheel C to reach an angular speed of 100 rev/min,..
A steel guitar string 50 cm long has a mass density of 1.5 g/m and the tension is 500 N. Find the frequency of the second harmonic
A 0.031 kg aluminum bullet traveling at 471 m/s strikes an armor plate and comes to a stop, what is the bullet's temperature change in degrees Celsius
block 1 of mass m1 slides from rest along a frictionless ramp from height h = 3.2 m and then collides with stationary block 2, What is the value of distance d if the collision is elastic
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