What is the change in entropy of the room
A Styrofoam cup holding 155 g of hot water at 97°C cools to room temperature, 23.0°C. What is the change in entropy of the room? Neglect the specific heat of the cup and any change in temperature of the room.
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The circuit is initially uncharged. It is the allowed to charge. It is then left hooked up to the battery for a long time. Then it is allowed to discharge completely. What is the value of the time constant?
What is the least number of packs of each he should order to so that each scout will have 1 hat and 1 shirt, and none will be left over?
A 30-turn 11.5 cm diameter coil is placed between the pole pieces of an electromagnet. When the magnet is turned on, the flux through the coil changes, inducing an emf.
A vibration platform oscillates up and down with an amplitude of 9.2 cm at a controlled variable frequency. Suppose a small rock of unknown mass is placed on the platform. At what frequency will the rock just begin to leave the surface so that it
The charge to rent a car is $29.95 per day plus $.08 per mile. Write an expression that shows the cost of renting a car for d days and m miles.
The cost to rest a car is $30 per day.Write an expression for the cost of renting a car for d days. Make a table to find how much it will cost to rest a car for 3,5,7,and 10 days.
While a firm's sales and net income have been steady during the last three years, the firm has experienced a decrease in its accounts receivable and inventory turnovers and an increase in its accounts payable turnover.
An investor purchased 500 shares of common stock, $25 par, for $21,750. Subsequently, 100 shares were sold for $47.50 per share. What is the amount of gain or loss on the sale?
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