Calculate the numbers of photons will be needed
Determine the numbers of photons will be needed to raise the temperature of 2.5 g of water by 2.2 k? Water is exposed to infrared radiation of wavelength 3.0×10-4 cm. Assume that all the radiation is absorbed and converted to heat.
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Calculate how many grams of nickel must be added to 500 grams of copper to form an alloy that has a liquidus temperature of 1350C? Calculate the ratio of the number of nickel atoms to copper atoms in this alloy?
A dolphin leaps out of the water at the angle of θ = 35 degrees above the horizontal. The horizontal component of the dolphin's velocity is v = 7.7 m/s. Determine the magnitude of the vertical component of the velocity.
What is the molarity of the unknown phosphoric acid solution? A 20.00 mL sample of phosphoric acid was neutralized with33.44 mL of 0.109 M NaOH.
A criminal is escaping across the rooftop and runs off the roof horizontally at a speed of v = 5.3 m/s, hoping to land on the roof of the adjacent building. Air resistance is negligible. The horizontal distance among the two buildings is D, and th
Determine the numbers of photons will be needed to raise the temperature of 2.5 g of water by 2.2 k? Water is exposed to infrared radiation of wavelength 3.0×10-4 cm.
A major-league pitcher can throw a base-ball in surplus of v = 41m/s. When a ball is thrown horizontally at this speed, determine how much will it drop by the time it reaches a catcher who is a distance d = 17.0m away from the point of release. Av
Two manufacturers supply food to the large cafeteria. Manufacturer A supplies 2400 cans of soup, and 3% are found to be dented. Manufacturer B supplies 3600 cans, and 1% are found to be dented. Given that can of soup is dented, determine the proba
Ag2+, Cu2+, Ba2+, and Mn2+. Addition of HCl causes a precipitate to form. After the precipitate is filtered off, H2SO4 is added to the supernatant and another precipitate forms.
Determine how far down stream will the swimmer be upon reaching the other side of the river? The sides of the riverbank are precisely parallel.
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