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Sound exits a diffraction horn loudspeaker through a rectangular opening like a small doorway. A person is sitting at an angle off to the side of a diffraction horn that has a width D of 0.0869 m. The speed of sound is 343m/s. This individual does not hear a sound wave that has afrequency of 10600 Hz. When she is sitting at an angle /2, there is a different frequency thatshe does not hear. What is it?
A cubic meter of some material has a mass of 8000 kg. Find the buoyant force on the block and the tension in the cable
A 2.5-kg particle oscillates on a spring with spring constant 85 N/m. At time t = 1.0s, What are the maximum speed and acceleration of the particle
How much charge can be placed on a capacitor with air between the plates before it breaks down if the area of each plate is 6.00 cm2
An 8.50kg point mass and a 15.0kg point mass are held in place 50.0 cm apart. Find the direction of the acceleration of the particle
The position of a particle is given in cm by x = (5) cos 5?t, where t is in seconds. Find the maximum acceleration of the particle
The nucleus of an atom consists of protons and neutrons (no electrons). A nucleus of a carbon-12 isotope contains six protons and six neutrons.
In 1980, over San Francisco Bay, a large yo-yo was released from a crane. What was the magnitude of the acceleration of the yo-yo during (a) its fall
At a dock, a crane lifts a 1200 kg container 30 m, swings it out over the deck of a frieghter, How much work is done by the crane on the container
A car weighing 1.1×104 N and traveling at 12.90 m/s attempts to round an unbanked curve with a radius of 54 m. What force of friction is required to keep the car
An experiment determines that there are 49 allowed rotational energies for a diatomic molecule whose moment of inertia is 2 x 10^-46 kg*m^2. What is the maximum rotational kinetic energy in eV of the molecule?
A "75 Watt" light bulb uses an average power of 75 W when connected to an rms voltage of 120V. what is the maximum current in the light bulb
A hypodermic syringe contains a medicine with the density of water, Determine the medicine's flow speed through the needle
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