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Scientists in a laboratory produce a sound wave in a simulated environment (air) with a velocity of 479 m/s. What is the temperature (in Kelvin) of the environment?
Space invaders land on earth. On the invaders' temperature scale, the ice point is at 25°I (I = invader), and the steam point is at 153°I.
An observer, whose eyes are 1.77 m above the ground, is standing 28.0 m away from a tree. The ground is level, and the tree is growing perpendicular to it. The observer's line of sight with treetop makes an angle of 22.0° above the horizontal. How..
Explorer is caught in a whiteout (in which snowfall is so thick that the ground cannot be distinguished from the sky) as returning to base camp.
A block is attached to a ceiling by a spring of force constant k. When pulled down and released, what is the force constant k of the spring
A metal bar, pivoted at one end, oscillates freely in the absence of a magnetic field. But, when it oscillates between the poles of a magnet, its oscillations are quickly damped. Why? (Such magnetic damping is used in a number of practical devices..
A 0.38 kg iron horseshoe that is initially at 580°C is dropped into a bucket containing 21.8kg of water at 21 °C. What is the final equilibrium temperature (in °C)? Avoid any heat transfer to or from the surroundings. Do not enter units.
What is an average magnitude of the Pointing vector 5.0miles from a radio transmitter broadcasting isotropically with an average power of 250-kW?
When blue light of wavelength 440 nm falls on a single slit, the first dark bands on either side of center are separated by 49.0 degrees. Determine the width of the slit
The largest apple pie ever made was rectangular in shape and had an area of 7m× 12m. Consider a parallel-plate capacitor with this area. Imagine that the capacitor is filled with air and the distance between the plates is 1mm. a.
A very long, straight solenoid with a cross-sectional area of 6.00cm2 is wound with 40.0 turns of wire per centimeter, What is the average induced emf in the secondary coil
Coulomb's Law describes the force between two charged objects, What is the magnitude and direction of the electrical force on object 2 due to Object 1
A 0.10kg solid rubber ball is attached to the end of a 0.80 m length of light thread. The ball is swung in a vertical circle. Point p, the lowest point of the circle, is 0.20 m above the floor.
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