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A 590-Hz sound travels through pure argon. The wavelength of the sound is measured to be 0.54 m. What is the speed of sound in argon?
and
What frequency of sound traveling in air at 20°C has a wavelength equal to 1.7 m, the average height of a person?
A worker on a scaffolding 65 ft above the ground needs to lift a 390 lb bucket of cement from the ground to a point 30 ft above the ground by pulling on the rope weighting 2 lb/ft . Set up the integral of how much work is required (just give the i..
Two concentric current loops lie in the same plane. The smaller loop has a radius of 3.0 cm and a current of 12 A. The bigger loop has a current of 20 A. What is the radius of the bigger loop
When a 0.20-kg block is suspended from a vertically hanging spring, it stretches the spring from its unstrained 0.005 m. find the total mechanical energy of the system at any instant
A bar magnet is oriented with its magnetic dipole moment at 39.5° to the direction of a 0.0689-T magnetic field, causing a torque of 0.00351 N·m to act on it
Assuming that the force is nearly constant during the time interval from 22.7 seconds after the probe is launched to 23.1 seconds after the launch, so that the velocity is changing at a constant rate, what is the change of the position of the prob..
A ball is thrown horizontally from the top of a 65.0 m building and lands 101.0 m from the base of the building. How long is the ball in the air
A massless spring with spring constant k is vertically mounted so that the bottom end is firmly attached to the ground, and the top end is free. A ball with mass m falls vertically down on the top end of the spring, becoming attached, so that the ..
A rectangle with a length L, and width L/2 has a surface charge density of 3.1mC/m^2. Determine the integral that would give you the electric field at a height h above the middle of the long edge.
11.50 kg block of metal measuring 12.0 cm x 10.0 cm x 10.0 cm is suspended from a scale and immersed in water. the 12.0
A cube of ice is taken from the freezer at -8.7^circ C and placed in a 114 g aluminium calorimeter filled with 329 g of water at room temperature of 20.0 ^circ {rm C}. The final situation is observed to be all water at 15.0^circ C.
Two long, parallel wires are separated by 3.0m. Each wire has a 25-Acurrent, but the currents are in opposite directions. Determine the magnitude of the net magnetic field midway between the wires.
Water molecule can be visualized as anisosceles triangle with an oxygen ion (-3.2E-19 C) and two Hydrogenions (1.6E-19 C each) at the three corners.
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