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What will be the lowest possible temperature to which very dry air at T = 104F can be cooled by evaporation? Consider p = 1000hPa and latent heat of vaporization constant and equal to 2.4 x 10^6 J/kg.
An object moves 2.90m in the + x- direction under the influence of a 148 N force directed 42 degrees above the x-axis. Find the work done on the object
A 2.16 kg block on a horizontal floor is attached to a horizontal spring that is initially compressed 0.0320 m. The spring has force constant 840 N/m.
A metal wire of resistance R is cut into three equal pieces that are then braided together side by side to form a new cable with length equal to one-third of the original length
q1. a rock of mass m 1.0 kg is tied to a string of length l 1.9 m and is twirled in a vertical circle. the speed v of
An object is placed 18.0 cm in front of a converging lens with a focal length of 6.00 cm. determine the image location and its characteristics
A steel wire strung between two supports is initially horizontal when there is no tension on it. When a 9.5 kg painting is hung on the wire, the wire makes a 25° angle to the horizontal, as shown. Illustrate what is the diameter of the wire?
A concave spherical mirror has a radius of curvature of 7.00cm. Calculate the size of the image
Two protons at rest and separated by 3.00 mm are released simultaneously. What is the speed of either at the instant when the two are 11.00 mm apart
To help prevent frost damage, fruit growers sometimes protect their crop by spraying it with water when overnight temperatures are expected to go below the freezing mark. How much heat is released by the water when it freezes
A speedboat moving at 30 m/s approaches a no-wake buoy marker 100 m ahead. The pilot slows the boat with a constant acceleration of negative 3.5 m/s^2 by reducing the throttle. How long does it take boat to reach the buoy.
Three identical train cars, coupled together, are rolling east at speed . A fourth car traveling east at 2 catches up with the three and couples to make a four-car train. What is the speed of the five-car train
When you submerge a 1 kg gold statue into the water and measure the volume of displaced water, show that, for pure gold, the volume of water displaced will be 51.8 cm^3.
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