How much will it cost to leave the bulb
If a 60 W light bulb at 120 V is left on in your house to prevent burglary, and the power company charges 10 cents per kilowatt-hour, how much will it cost to leave the bulb on for 30 days?
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What would the major product be of the reaction of 1 mole of 3,4-dibromoheptane with 1 mole of KOH in ethylene glycol?
In a large LB department store the average waiting time at the toys checkout counter is 5 minutes with a standard deviation of 2 minutes. Assume that the distribution of waiting time is normal.
What are the wall temperatures at that location and at the 10. 3 ft location? Calculate the arithmetic-mean temperature difference and the log-mean temperature difference for the heated section.
You throw a ball, m = 2kg, with an initial velocity of 20 m/s at an angle of 60 degrees from the top of a 30m cliff. a) Using energy considerations, what is the magnitude of the velocity when it hits the ground?
Compute the percentage change in the volume of the oil in the system as the pressure is increased from zero to 3000 psi if the bulk Modulus of the oil is 189000 psi ( 1303 Mpa).
Halothane, C2HF3BRCl, is a commonly used gaseous anesthesia. One suggested dosage is 3.0% halothane by volume. What is the partial pressure of halothane if air administered to the patient is at a pressure of 775 mm Hg?
Helium gas expands in an adiabatic turbine from 2 MPa and 750°C to 0.18 MPa at a rate of 1.5 kg/s. Assuming constant specific heats at room temperature, calculate the maximum power output of the turbine.
You throw a ball, m = 2kg from the top of a 30 m cliff, with a initial velocity of 25 m/s at an angle of 50 degrees. a) Using energy considerations, what is the maximum height of the ball?
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