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While blowing across the bowl of soup, you wonder how efficiently the soup can cool by itself through evaporation. You notice that the bowl of hot soup loses 0.42 g of water by evaporation in 1 min.
What is the average evaporative heating rate of the soup during that minute? Assume that soup is primarily water.
The drawing shows a rectangular block of glass (n = 1.52) surrounded by liquid carbon disulfide (n = 1.63). At what angle of refraction does the ray leave the glass at point B
make Use of a 9.81 m/s^2 for the magnitude of the acceleration due to gravity.
A car moves along an x axis through a distance of 950 m,starting at rest (at x = 0) and ending at rest (atx = 950 m). Through the first 1/4 of that distance, itsacceleration is +6.25 m/s2.
You place an object 16.6 cm in front of a diverging lens which has a focal length with a magnitude of 12.2 cm. Determine how far in front of the lens the object should be placed in order to produce an image that is reduced by a factor of 4.40.
A 10000 kg empty railroad car moving at 3 m/s collides with a loaded railroad car weighing 196000 N and couples with it. What is the final velocity of the combined railroad cars
an aluminum wire carrying a current of 4a has a cross-sectional area of 9e-06 m2. find the drift speed of the electrons
Find the magnitude of the acceleration of the particle. What are the x- and y-coordinates of the shell where it explodes,associated to its firing point.
Find the speed of the waves on an 800.0 mg violin string 21.7-cm long if the fundamental frequency is 912.0 Hz. find the wavelength of the sound waves emitted by the string
A nonreflective coating (n = 1.40) covers the glass (n = 1.52) of a camera lens. Assuming that the coating prevents reflection of a specific wavelength (vacuum = 535 nm), find the minimum nonzero thickness that the coating can have.
A small solid ball of mass M and radius R rolls without slipping on the track whose height y as a function of horizontal position x is given by y=ax^2, Find an expression for the period of the resulting motion
What voltage V_AC should an electron be accelerated during if the maximum energy photon it produces is to promote a hydrogen atom from the n=1 to the n=4 energy level?
A 4.6 kg object and a 13.0 kg object, both resting on a frictionless table, are associated by a mass less compressed spring. The spring is released and the objects fly off in opposite directions. The4.6-kg object has a velocity of8.0 m/s to the left...
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