Problem 1: A cell generates a traction force of 2×〖10〗^4 μ"dynes" and travels at a speed...
Problem 1: A cell generates a traction force of 2×〖10〗^4 μ"dynes" and travels at a speed of 10 μ"m"/"hr" .
What is the energy expended by the cell to travel
50 μm?
What is the power, in ergs/s, expended by the
cell?
How many of these cells would be required to expend
the same energy as a 60 Watt light bulb?
Homework Answers
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Problem 1: A cell generates a traction force of 2×〖10〗^4
μ"dynes" and travels at a speed...
Name: How moch energy (work) is expended to move an object 30 with a force of...
Name: How moch energy (work) is expended to move an object 30 with a force of 5 Ihe? eet can an object be moved with 50 ft. lb, of energy if it takes 2.5 lbs of force? How mary wwy icht bulb will use a specifie amount of energy in 30 minutes. How many meters can you move a car with the same amount of energy if it takes 200 Newtons of force to Our Styhawks use 160 horsepower engines....
O Search 13. Ranking Task #172 6. If a wave travels at a speed of 8...
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At high speed, the main retarding force on an automobile is air drag. We haven’t specifically...
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2. Suppose a car travels 108 km at a speed of 20.0 m/s, and uses 2.20...
2. Suppose a car travels 108 km at a speed of 20.0 m/s, and uses
2.20 gallons of gasoline. Only 30% of the gasoline goes into useful
work by the force that keeps the car moving at constant speed
despite friction. (The energy content of gasoline is 1.3 ✕
108 J per gallon.)
(a) What is the force exerted to keep the car moving at constant
speed?
N
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many...
1. A 30 N force is directed at an angle of 50° W of N x-component:...
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Please work out 3 clearly and with units. Thanks! 1. A 10-g bullet travels vertically upwards...
Please work out 3 clearly and with units. Thanks!
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1. A force of 5.78x10-16 N acts on an unknown particle that travels at a 90...
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Question 1 Question 2: Question 3: Question 4: Question 5: Question 6: Question 7: Question 8:...
Question 1
Question 2:
Question 3:
Question 4:
Question 5:
Question 6:
Question 7:
Question 8:
Please number each question. Thank you
Question 1 Not yet answered Marked out of 4.00 Flag question If the number density of electrons in a wire is n 1.00 x 1028 m-3, at what drift velocity must they travel through a wire of diameter d 0.560 mm to deliver a current of 7.20 A? Give your answer in mm s1 to 3 significant figures...
5:16 lLTE ) Done 1 of 5 Assessment #1 (Kinematics of a Particle) Rectilinear Motion (Straight...
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Name: How moch energy (work) is expended to move an object 30 with a force of 5 Ihe? eet can an object be moved with 50 ft. lb, of energy if it takes 2.5 lbs of force? How mary wwy icht bulb will use a specifie amount of energy in 30 minutes. How many meters can you move a car with the same amount of energy if it takes 200 Newtons of force to Our Styhawks use 160 horsepower engines....
O Search 13. Ranking Task #172 6. If a wave travels at a speed of 8 m/s and has a wavelength of 2 m, what is its frequency? O 6 Hz O 16 Hz o 4 Hz O 10 Hz Simple Resistor Circuits-Voltage Drop12 All the resistors in the circuits below are identical t 2 each. The batteries are ideal with voltages of 6 or 12 volts as shown. All connecting wires have negligible resistance Rank the voltage at the...
2. Suppose a car travels 108 km at a speed of 20.0 m/s, and uses
2.20 gallons of gasoline. Only 30% of the gasoline goes into useful
work by the force that keeps the car moving at constant speed
despite friction. (The energy content of gasoline is 1.3 ✕
108 J per gallon.)
(a) What is the force exerted to keep the car moving at constant
speed?
N
(b) If the required force is directly proportional to speed, how
many...
1. A 30 N force is directed at an angle of 50° W of N x-component: A. -19 N B. -23 N C. -36 N D. 19N E. 23 N y-component: A. -19 N B. -23N C. -36 N D. 19 N E. 23 N west. What is the train's average acceleration? A. 10 kmh2,W B. 43 km/h2, w с. 10 kmh?. E D. 43km/h, E E. 53kmh?, E 2. The velocity of a train is 80 km/h west. One...
Please work out 3 clearly and with units. Thanks!
1. A 10-g bullet travels vertically upwards at 1000 m/s, then strikes and passes through a 2.0-kg block initially at rest. The bullet emerges from the block with a speed of 400 m/s because it transfers momentum to the block. (a) How much momentum did the block gain? (b) How fast is the block now moving, and what is its kinetic energy? (c) Using energy considerations only, to what maximum height...
Problem 4: Read Appendix 2 below (Sec. 1.4.1 of Kasap) and then solve. A metallic back contact is applied to the CdTe solar cell of Problem 1 using a set up similar to that described in Figure 1.74 (b) on the next page. To form the metallic back contact, two evaporation sources are used, Cu and Au. An initial 3 nm layer of Cu is deposited first and then 30 nm of Au is deposited. After these depositions, the sample...
Question 1
Question 2:
Question 3:
Question 4:
Question 5:
Question 6:
Question 7:
Question 8:
Please number each question. Thank you
Question 1 Not yet answered Marked out of 4.00 Flag question If the number density of electrons in a wire is n 1.00 x 1028 m-3, at what drift velocity must they travel through a wire of diameter d 0.560 mm to deliver a current of 7.20 A? Give your answer in mm s1 to 3 significant figures...
5:16 lLTE ) Done 1 of 5 Assessment #1 (Kinematics of a Particle) Rectilinear Motion (Straight linc Motion 3. The position of a point during the interval of time from r otor 6 is given by ** * m. (a) What is the maximum velocity during this interval of time, and at what time does it occur? (b) What is the acceleration when the velocity is a maximum? (20 m/s, 0 m/s 3. A test projectile is fired horizontally into...
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