KAssignment 5C Item 5 5 of 6 I Review | Constants Two 33.0-uC charges are attached to opposite ends of a spring with spring constant k = 155 N/m and equilibrium length 52.6 cm. Part A By how much does the spring stretch? Hint: You'll need to use a computer or advanced calculator to solve the cubic equation that arises in this problem. Express your answer with the appropriate units. HA ? Value Units = Submit Request Answer

LED light bulb uses energy of 3W.  What is the electrical energy is used if the light is on for 2 hours? A)34510 J B)21600 J C)92850 J D)62630 J

A proportional controller drives the plant based on the difference between the current position of the system and the desired position. True False

It takes 1 pound of coal to generate one kWh of electricity. How much coal would an average home use in a year? (Hint: 365 days in a year)

A 25kg rock rolls off a 95 m tall cliff what will be the spread to f the rock when it hits the ground

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Your home electricity bill for this 30-day month is $84. The rate is 15 cents per kilowatt-hour. How many Joules of energy did you consume during the month? a) 3.6 million b) 60,000         c) 1              d) 60               e) none of these

Find the amount of work necessary to assemble the following configuration. 5m 4m 3m

Which of the pulleys will have a mechanical advantage of one? Select all that apply. 150 N s0N 50N 50N 100 N 5ON

Read through the different scenarios below and choose what kind of energy transfer is happening for each one. Note: each answer will be used 1 time.