Ex. 72 : A uniform copper wire of length 5 m and diameter 3 x 10m is extended by 103 m. Calculate the energy stored in the wire. Y = %3D 12 x 1010 N/m².
Q: Consider the following figure. P( MPa) 10 8. 6. 2 V (m³) 2 4 6 8 10 12 (a) Determine the work done…
A: Work done = Area under the curve in (P-V) coordinates,Work done = A1+A2+A3 = 3*(12-3) +…
Q: A hot water heater in a residential home runs for an average of 2.5 hours per day with a heat energy…
A: This question is based on electrical energy consumed in home or domestic connection.
Q: 2. A worker drives a 0.500 kg spike into a rail tie with a 2.50 kg sledgeham- mer. The hammer hits…
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Q: How long does a 65 kg adult need to walk at a rate of 5 km/h in order to burn off all the energy in…
A: Given Metabolic power for walking at 5 km/h is W=380 W Each slice of pizza contains energy of…
Q: 15 F 8.2pF 22 F
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Q: This time, the pendulum is 1.07 m long and has a mass of 4.92 kg. You give it a push away from…
A: length (L) = 1.07 m mass (m) = 4.92 kg initial speed = 2.88 msenergy lost = 1 J
Q: The energy released from condensation in thunderstorms can be very large. Calculate the energy (in…
A: radius = 2.1 km h = 2.7 cm density of water = 1000 kg/m3
Q: A = 3.0 i + 2.8 j – 1.8 k and B = 1.2 i – 2.2 j . Find c = A · B and D = A x B.
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Q: A student evaluates a weight loss program by calculating the number of times she would need to climb…
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Q: One mole of helium atoms has a mass of 4 grams. If a helium atom in a balloon has a kinetic energy…
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Q: A hot water heater in a residential home runs for an average of 2.2 hours per day with a heat energy…
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Q: A sealed container containing water with stirring wings inside is heating up on the stove. In this…
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Q: In the figure, a 4.5 g ice flake is released from the edge of a hemispherical bowl whose radius r is…
A: Given, radius of bowl= 24 cm or 0.24 m Mass of flake= 4.5 gram mass of flake in second case= 4.5*6=…
Q: I often make tea in my microwave oven. I know that it takes two minutes to bring the temperature of…
A: The efficiency of a device is defined as the ratio of output energy upon the input energy. Now…
Q: The energy released from condensation in thunderstorms can be very large. Calculate the energy (in…
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Q: 111. What is the change in internal energy of the gas? a. 2.56 x 104 J b. 1.28 x 105 J AV = ncpAT c.…
A: Number of moles n = 7 Change in the temperature ∆T = 1172.60 k Specific heat at constant volume…
Q: A hot water heater in a residential home runs for an average of 2.5 hours per day with a heat energy…
A: Solution-Given thatAverage running hour of water heater per day (t)=2.5 hours=2.5×60×60 seconds=9000…
Q: As we’ve seen, the sun’s energy comes from fusion reactions that combine four hydrogen atoms to…
A: As from the give data, four hydrogen atoms combine to produce a single helium atom. The reaction is…
Q: In April of 1976, Chicago Cub slugger Dave Kingman hit a home run which cleared the Wrigley Field…
A: Write the work-energy equation.…
Q: certain location , the solar power per unit area reaching Earth’s surface is 200 W/m square ,…
A: GivenSolar power per unit area reaching Earth’s surfaceP=200 W/m2Average power requirement in your…
Q: The internal energy of a system is initially 24 J. The system does 25 J of work. What is the…
A: Given data: Initial internal energy (Ui) = 24 J Work done by the system (W) = 25 J Heat added to…
Q: A PHYS 1510 student was working on a robotics project. The joints on the machine they were building…
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Q: J The specific heat capacity of water is the amount of energy (in Joules) required to raise the…
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Q: electric hot plate raises its own internal energy and the internal energy of a cup of water by 15000…
A: given Q = -2900 J ΔU = 15000 J
Q: 600 J of work are done on a system in a process that decreases the system's thermal energy by 400 J.…
A: Given that : 600 J of work are done on a system in a process that decreases the thermal energy by…
Q: In the figure, a 3.0 g ice flake is released from the edge of a hemispherical bowl whose radius ris…
A:
Q: A hot water heater in a residential home runs for an average of 3.2 hours per day with a heat energy…
A: Given Data:- The number of hours per day that the heater runs: 3.2 h/day=3.2×3600 s/dayThe energy…
Q: A certain coal-fired power plant has a rated power capacity of P = 850 MW. The output of this plant…
A: Given that :- Power capacity , P=850 MW Output , W=0.26Q11
Q: In the figure, a 3.2 g ice flake is released from the edge of a hemispherical bowl whose radius ris…
A: Mass, m = 3.2 g Radius, r = h = 19 cm = 0.19 m Initial speed, vi = 0.51 m/s
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- A simple pendulum is suspended from the ceiling by means of a string and this time, the pendulum is 2.40 m long and has a mass of 3.23 kg. You give it a push away from vertical so that it starts swinging with a speed of 2.93 m/s. Due to friction at the pivot point, 1.00 Joule of the pendulum s initial kinetic energy is lost as heat during the upward swing. What maximum angle will it reach, with respect to the vertical, before falling back down? 39.5 degrees 33.8 degrees 35.1 degrees 43.9 degreesA certain sandwich cookie contains 55 C of nutritional energy. A) For what amount of time must you swim in order to work off three cookies if swimming consumes560 C/h? Express your answer to two significant figures and include appropriate units. B) Instead of swimming you decide to run for 50 min at a pace that works off 840 C/h. How many cookies have you worked off? Express your answer to two significant figures.do q 8 pls ty...a
- Suppose you have a 1000Wmicrowave that you need to run for 5minto heat up your dinner.1. How much energy does it take to heat up your dinner?2. At$0.12/kWhr, how long much does it cost to warm up your dinner?A hot water heater in a residential home runs for an average of 2.2 hours per day with a heat energy input of 3.7 kW. What would be the annual cost for hot water in this home using a gas hot water heater if the cost of natural gas is $0.33/m3? The gas water heater can get 23 MJ of energy from 1 m3 of natural gas. [round your final answer to zero decimal places]?My computer uses 15 W, if I run it for 3 hours how many Joules have I used?
- A graduate student leaves a cylinder of carbon dioxide sitting in the sun. The cylinder absorbs 25.2 J of energy while sitting in the sun. A piston in the cylinder moves upward. The carbon dioxide did 12 J of work on the piston to move it upward. Find the change in internal energy of the carbon dioxide.A typical coal-fired power plant burns 340 metric tons of coal every hour to generate 2.5 × 106 MJ of energy. One metric ton has a mass of 1000 kg and a metric ton of coal has a volume of 1.5 m^3. The heat of combustion is 28 MJ/kg. What is the power plant’s efficiency?How much energy does Hannah the Standard Poodle absorb from the sun during a 37-minute walk? Hannah’s fur is matte black, so she absorbs nearly all of the sunlight that hits her; from above, she looks approximately like a rectangle that is 92 cm long and 32 cm wide. The solar intensity in Hannah’s Orange County neighborhood is 1200 W/m2.
- A 0.5 kg block slides on a rough horizontal table top. Just before it hits a horizontal ideal spring its speed is 4.28 m/s. It compresses the spring 3.59 cm before coming to rest. If the spring constant is 1673.75 N/m, the internal energy of the block and the table top, during the spring compression, must have increased by: a. -4.53 J b. -0.86 J c. -3.50 J d. -5.13 JCritically ill patients in a cardiovascular intensive care unit must be intensely monitored for any number of conditions. One of these conditions is hypoperfusion, which is an overall decrease in blood flow throughout the body. Low stroke volume is one indicator of hypoperfusion. The pressure-volume (PV) graph below shows three possible loops for the heart. The control loop shows a healthy heart while the other two loops show reduced or increased preload (assuming that afterload and contractility remain fixed). 200 LV Pressure (mmHg) 100 Preload Control ↑ Preload 100 LV Volume (ml) (a) What is the stroke volume for the control patient? RK '15 200 (b) A healthy heart rate (HR) is measured as 80 beats per minute. What is the control patient's cardiac output CO? Control patient's CO: mL minThe metabolic power for typing is 150 W for bob. For how long would bob have to type to use all the energy available in a typical fast food meal of burger, fries, and a drink, which the meal energy content is 5660 kJ (1350 food calorie), in hours?