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Problem: A water pump draws about 6 A when connected to 240 V. What is the cost (with electrical energy at 17 cents per kWh) of running the pump for 13 h?
Please show how you get the answer.
When 3880 J of heat are added to a 0.159-m-long silver bar, its length increases by 4.31 x 10-3 m. What is the mass of the bar
A 289 kilogram log is pulled up a ramp by means of a rope that is parallel to the surface of the ramp. Determine what is the tension in the rope
A 1300-kg car moving on a horizontal surface has speed v = 55km/h when it strikes a horizontal coiled spring, What is the spring stiffness constant of the spring
The minimum distance required to stop a car moving at 38.0 mi/h is 41.0 ft. What is the minimum stopping distance for the same car moving at 68 mi/h, suppose the same rate of acceleration.
A balloon whose volume is 500m3 is to be filledwith hydrogen at atmospheric pressure. How many cylinders are required
Two bumper cars moving on a frictionless surface collide elastically. The first bumper car is moving to the right with a speed of 21.5 m/s and rear-ends the second bumper car, which is also moving to the right with a speed of 5.00 m/s. What is the sp..
A 1000 kilogram car is moving at 15 kilometer per hour. If a 2000 kilogram truck has 23 times the kinetic energy of the car, compute how fast is the truck moving
Ilustrate what is the magnitude of the torque about his shoulder if he holds his arm in each of the following ways? Straight out to his side, parallel to the floor.
River Pascal with a volume flow rate of 5.5×105 joins with River Archimedes, which carries 1.10×106 , to form the Bernoulli River. The Bernoulli River is 140 wide and 10 deep. What is the speed of the water in the Bernoulli River?
A bimetallic strip (68cm by 1cm by 0.01cm) has aluminum (alpha = 23 x 10^-6 1/C) on one side has steel (alpha = 12 x 10^-6 1/C) on the other. What change in temperature is required to change the strip into a full circle
You have 18 speakers in the with a large room where there are many audiences , what is the best way to arrange the speakers to get the best less frequency ?
How many time constants must elapse before a capacitor in a series RC circuit is charged to 66.0% of its equilibrium charge
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