Problem regading final temperature of the gold
A 4.10 g nugget of pure gold absorbed 299 J of heat. What was the final temperature of the gold if the initial temperature was 24.0°C? The specific heat of gold is 0.129 J/(g·°C).
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A 71 kg window washer stands on a 179 kg platform suspended on the side of a building. An electric motor raises the platform 58 m up the side of the building in 7.2 s. How much power is generated by the motor?
A piece of metal with a mass of 122 g is placed in a 50 mL graduated cylinder. The water level rises from 20. mL to 39 mL. What is the density of the metal?
Find the force of the seat on the child at the lowest point.
The United Nations World Tourism Organization (UNWTO) has made poverty alleviation through tourism one of its leading priorities.
Calculate the percent ionization of the acid under these conditions. What effect does the nonionized acid have on the membranes lining the stomach?
In addition, the snow exerts a retarding force on the sled that points opposite to the direction of motion, and has a magnitude of 57 N. Find the acceleration of the sled and child.
53.0 ml of of 1.50 M solution is diluted to a volume of 268 ml. A 134 ml portion of that solution is diluted using 147 ml of water. what is the final concentration?
A pure gas sample at room temperature (25 C) has an average molecular speed of 682 m/s. What is the identity of the gas?
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