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An experiment finds that standing waves on a 0.800-m-long string, fixed at both ends, occur at 24.0 Hz and 32.0 HZ, but at no frequencies in between.
A) What is the fundamental frequency?
B) What is the wave speed on the string?
A tank, full of liquid of depth h, and top surface area A, is at rest on a frictionless table. Find the radius of the hole in terms of the h, k, ?, x, and g the acceleration of gravity
A nearsighted person wears glasses to correct the problem. How far in cm from the eyes is the person's far point located
A student sitting on a frictionless rotating stool has rotational inertia 0.92kg?m2 about a vertical axis through her center of mass, Ignoring her arm mass, what's her new rotational velocity
In outer space a rock of mass 12 kg is acted on by a constant net force ‹ 30, ?14, 49 › N during a 3 s time interval. What was the rock's velocity at the beginning of the time interval
A 1070-N uniform beam is attached to a vertical wall at one end and is supported by a cable at the other end. A 1960-N crate hangs from the far end of the beam.
A 30.0-g goldfinch lands on a slender branch, where it oscillates up and down with simple harmonic motion of amplitude 3.50*10^-2m and period 1.50s. What is the maximum acceleration of the finch
a 70 kg hockey player sliding freely on his knees on horizontal icy surface with velocity m/s. find the velocity of the player after he catches the puck
Explain how far x can a man who weighs 447 n from the right support which is 1.1 m from the right side of the board before the board tips?
A tight uniform string with a length of 1.80 m is tied down at both ends and placed under a tension of 100 N. What is the mass of the string
When a potential difference of 166 V is applied to the plates of a parallel-plate capacitor, the plates carry a surface charge density of 32.0 nC/cm2. What is the spacing between plates.
A three-step cycle is undergone by n moles of an ideal diatomic gas: (1) the temperature of the gas is increased from T_1 to T_2 at constant volume, compute the efficiency of the cycle in terms of T_1 and T_2
determine the kinetic energy of the ball at its highest point. Illustrate what is its speed when it is 9.0 m below its highest point.
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