ou do work?
Q: .An electric motor has a power output of 1.5 kw. If it operates at 75% efficiency, what work can it…
A: N = 1.5 kW efficiency , = 75% To find = a) Work done in one hour in Joules b) Work…
Q: What is the efficiency of an out-of-condition professor who does 2.00 ✕ 105 J of useful work while…
A: Given: Food energy to mobilize (input) (E) = 510 kCal. = 510×4184 = 2133.84×103 J Work done (output)…
Q: How much work W is done by each horse in a time t? How much power P does each horse provide?
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Q: ) A crane used to lift a 975 kg bucket of concrete operates at an efficiency of 29.8%. If the…
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Q: A student eats a dinner rated at 2 000 Calories. He wishes to do an equivalent amount of work in the…
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Q: Define REVERSIBLE STEADY-FLOW WORK
A: Definition: The steady flow devices deliver the most and consume the least work when it undergoes a…
Q: How much work does a supermarket checkout attendant do on a can of soup he pushes 0.430 m…
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Q: How much work does a supermarket checkout attendant do on a can of soup he pushes 0.300 m…
A: A. Given that force on car is 5.20N, and horizontal displacement is 0.300m.
Q: 23. How much work is required to fill the tank in Figure 9.5.5 with water from ground level? +8…
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Q: Is work done whenever an object moves through a distance? Explain.
A: SOlution: To explain, if the work done whenever an object moves through a distance
Q: A box with a weight of 200 N would normally require 200N of force to lift. To lift this load 2…
A: Work done by a body when applied a force to move it by a distance is given by W=F.s Work done in…
Q: You attempt to lift a 1200 N barbell for 10 min, excreting a 1200 N force, but won't move. How much…
A: Required : Amount of work done.
Q: 25. An engine is 99% efficient. How much work could an engine that runs at 888 J produce? O 800 J O…
A: Efficiency of the engine, Heat supplied to the engine,
Q: The third floor of a apartment is 9.4 meters above street level. How much work is needed to move a…
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Q: Consider two houses that are identical, except that the walls are built using bricks in one house,…
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Q: Calculate the energy used per day (kWh) of a car with an efficiency of 14 kilometers per liter and…
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Q: 2. Are you doing work in these situations? Also a question from your PHYS1111 class.
A: Work done is force that cause a body to move. It is the product of force and displacement.
Q: A 73-kg boy is surfing and catches a wave which gives him an initial speed of 1.6 m/s. He then drops…
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Q: A wind turbine is set up in a farming field, the wind speed vis 5.2 m/s. Assume that the available…
A: We are given wind turbine. We are given density. We are given radius also. We are given efficiency.…
- How can you measure the rate at which you do work?
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- The extension, y, of a material with an applied force, F, is given by y=eF×1×10-3. Calculate the work done if the force increases from 100N to 500N using: An analytical integration technique A numerical integration techniqueCalculate the efficiency (km/L) of a car that has traveled 150 kilometers in the past 4 days, using 35 kWh of energy per day. Group of answer choices 10.7 km/L 14.4 km/L 15.0 km/L 16.3 km/L1) How much work does a supermarket checkout attendant do on a can of soup he pushes 0.550 m horizontally with a force of 4.40 N? Express your answer in joules and kilocalories. _____J _____kcal
- How much work does a supermarket checkout attendant do on a can of soup he pushes 0.390 m horizontally with a force of 5.40 N? Express your answer in joules and kilocalories. (For each answer, enter a number.) work in joules ________J work in kilocalories _______kcalIdentical twins Ann and Betty set out to climb a mountain. Ann chooses a slope that averages 30° above the horizontal and Betty chooses a slope that averages 40°. Compare the amounts of work the twins do.A 10,000 kg streetcar starts from rest when the conductor powers on the electric drive motor. If this power is maintained at a constant 5 kW and if the mechanical efficiency of the motor is 90%, how long does the streetcar take to reach a speed of 15 km/hr? Neglect wind resistance. ao OO OO OO
- If the energy conversion efficiencies in a 3 step process are 30% for the first step, 40% for the second, and 20% for the third, the overall efficiency (step one to end) is about: 50% 10% 2% 90% 20% 00000A 0.135 kg ball is thrown straight up from 2.33 m above the ground. Its initial vertical speed is 6.80 m/s. A short time later, it hits the ground. Calculate the total work done by the force of gravity during that time. Submit Answer Tries 0/5 This discussion is closed. Send FeedbaoCalculate the energy used per day (kWh) of a car with an efficiency of 12 kilometers per liter and has driven 90 kilometers in the past 6 days Group of answer choices 12.5 kWh 75.0 kWh 20.0 kWh 14.3 kWh
- Describe the Principle of Virtual Work?A weight lifter lifts a 320-N set of weights from ground level to a position over his head, a vertical distance of 1.75 m. How much work does the weight lifter do, assuming he moves the weights at constant speed?____ Jlist 25 ways that you can personally save energy.