Estimate the value of resistances needed to make a variable timer for intermittent windshield wipers: one...
Estimate the value of resistances needed to make a variable timer for intermittent windshield wipers: one wipe every 15 ss, 8 ss, 4 ss, 2 ss, 1 ss. Assume the capacitor used is on the order of 4 μFμF . See (Figure 1).
A- Estimate the mininum value of the resistance.
Express your answer to one significant figure and include the appropriate units.
Rmin=
B- Estimate the maximum value of the resistance.
Express your answer to one significant figure and include the appropriate units
Rmax =
Homework Answers
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Estimate the value of resistances needed to make a variable
timer for intermittent windshield wipers: one...
Estimate the value of resistances needed to make a variable timer for intermittent windshield wipers: one...
Estimate the value of resistances needed to make a variable timer for intermittent windshield wipers: one wipe every 15 s, 8 s, 4 s, 2 s, 1 s. Assume the capacitor used is on the order of 10 μF . Part A Estimate the mininum value of the resistance. Express your answer to one significant figure and include the appropriate units. Part B Estimate the maximum value of the resistance. Express your answer to one significant figure and include the...
Estimate the value of resistances needed to make a variable timer for intermittent windshield wipers: one...
Estimate the value of resistances needed to make a variable timer for intermittent windshield wipers: one wipe every 15 s, 8 s, 4 s, 2 s, 1 s. Assume the capacitor used is on the order of 7 μF . Estimate the maximum and minimum value of the resistance.
A charging RC circuit controls the intermittent windshield wipers in a car. The emf is 12.0...
A charging RC circuit controls the intermittent windshield wipers in a car. The emf is 12.0 V. The wipers are triggered when the voltage across the 110 µF capacitor reaches 10.0 V; then the capacitor is quickly discharged (through a much smaller resistor) and the cycle repeats. What resistance should be used in the charging circuit if the wipers are to operate once every 1.40 s? Answer in kΩ please. I need it ASAP. Thank you :)
please help :) Constants Suppose that you have a 660-2, a 760-2, and a 1.30-kS2 resistor....
please help :)
Constants Suppose that you have a 660-2, a 760-2, and a 1.30-kS2 resistor. What is the maximum resistance you can obtain by combining these? Express your answer to three significant figures and include the appropriate units. НА ? Rmax = Value Units Submit Request Answer Part B What is the minimum resistance you can obtain by combining these? Express your answer to three significant figures and include the appropriate units. μΑ ? Rmin = Value Units
Course Home ring <Quiz2 00:44 Hide Timer At the instant shown the 100-lb block A is...
Course Home ring <Quiz2 00:44 Hide Timer At the instant shown the 100-lb block A is moving down the plane at 7 ft/s while being attached to the 50-lb block B. The coefficient of kinetic friction between the block and the incline is 0.4. Neglect the mass of pulleys and cables. (Figure 1) Express your answer to three significant figures and include the appropriate units. Units Figure Submit Part B Express your answer to three significant figures and include the...
Part A Estimate the number of moles of water in all the Earth's oceans. Assume water...
Part A
Estimate the number of moles of water in all the Earth's oceans.
Assume water covers 75% of the Earth to an average depth of 3
km.
Express your answer to one significant figures and include the
appropriate units.
Part B
Estimate the number of molecules of water in all the Earth's
oceans.
Express your answer using one significant figure.
Part A Estimate the number of moles of water in all the Earth's oceans. Assume water covers 75% of...
Specify the numerical value of I, Express your answer to three significant figures and include the...
Specify the numerical value of I, Express your answer to three significant figures and include the appropriate units. ReviewI Constants The current and voltage at the terminals of the capacitor in the circuit in (Figure 1) are i(t) 2.5e2500f mA, vt)- (40 22e 25t) V, t20 I6.36 mA where t is in seconds. SubmitP XIncorrect; Try Again Part B Specify the numerical value of Vo Express your answer to three significant figures and include the appropriate units. 18.0 V Figure...
Suppose the end of your finger is charged. Estimate the breakdown voltage in air for your...
Suppose the end of your finger is charged. Estimate the breakdown voltage in air for your finger. Assume The width of the end of a finger is about 1 cm. Express your answer to one significant figure and include the appropriate units. About what surface charge density would have to be on your finger at this voltage? Express your answer to one significant figure and include the appropriate units.
For some applications, it is important that the value of a resistance not change with temperature....
For some applications, it is important that the value of a resistance not change with temperature. For example, suppose you made a 9 kΩ resistor from a carbon resistor and a Nichrome wire-wound resistor connected together so the total resistance is the sum of their separate resistances. The temperature coefficients of resistivity of carbon and Nichrome at 20∘C are -0.0005 (∘C)−1 and 0.0004 (∘C)−1, respectively. Express your answer to one significant figure and include the appropriate units. a.) What value...
Part A Estimate the air pressure inside a category 4 hurricane, where the wind speed is...
Part A Estimate the air pressure inside a category 4 hurricane, where the wind speed is 240 km/h (see the figure). (Figure 1) Express your answer to two significant figures and include the appropriate units. P= Value Units Submit Request Answer < Return to Assignment Provide Feedback
please help :)
Constants Suppose that you have a 660-2, a 760-2, and a 1.30-kS2 resistor. What is the maximum resistance you can obtain by combining these? Express your answer to three significant figures and include the appropriate units. НА ? Rmax = Value Units Submit Request Answer Part B What is the minimum resistance you can obtain by combining these? Express your answer to three significant figures and include the appropriate units. μΑ ? Rmin = Value Units
Course Home ring <Quiz2 00:44 Hide Timer At the instant shown the 100-lb block A is moving down the plane at 7 ft/s while being attached to the 50-lb block B. The coefficient of kinetic friction between the block and the incline is 0.4. Neglect the mass of pulleys and cables. (Figure 1) Express your answer to three significant figures and include the appropriate units. Units Figure Submit Part B Express your answer to three significant figures and include the...
Part A
Estimate the number of moles of water in all the Earth's oceans.
Assume water covers 75% of the Earth to an average depth of 3
km.
Express your answer to one significant figures and include the
appropriate units.
Part B
Estimate the number of molecules of water in all the Earth's
oceans.
Express your answer using one significant figure.
Part A Estimate the number of moles of water in all the Earth's oceans. Assume water covers 75% of...
Specify the numerical value of I, Express your answer to three significant figures and include the appropriate units. ReviewI Constants The current and voltage at the terminals of the capacitor in the circuit in (Figure 1) are i(t) 2.5e2500f mA, vt)- (40 22e 25t) V, t20 I6.36 mA where t is in seconds. SubmitP XIncorrect; Try Again Part B Specify the numerical value of Vo Express your answer to three significant figures and include the appropriate units. 18.0 V Figure...
Suppose the end of your finger is charged. Estimate the breakdown voltage in air for your finger. Assume The width of the end of a finger is about 1 cm. Express your answer to one significant figure and include the appropriate units. About what surface charge density would have to be on your finger at this voltage? Express your answer to one significant figure and include the appropriate units.
Part A Estimate the air pressure inside a category 4 hurricane, where the wind speed is 240 km/h (see the figure). (Figure 1) Express your answer to two significant figures and include the appropriate units. P= Value Units Submit Request Answer < Return to Assignment Provide Feedback
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