Find the work done against the force of gravity in moving a rocket weighing 8 tons to a height 200 mi above the surface of the earth. A. 16000/7 mi-tons B. 32000/21 mi-tons C. 64000/21 mi-tons D. 16000/21 mi-tons
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- I'm trying to understand the different types of energies. I understand the definitions, but when I apply them to situations, it doesn't make much sense to me. I have the following: A. Entrophy - measure of the amt of disorder, or randomness in a system B. Kinetic Energy - Energy in Motion C. Heat - kinetic energy contained in the random motion of atoms & molecules D. Chemical Energy - type of potential energy which arises from the arrangement of atoms and be release in chemical reactions E. Conservation of Energy: Kinetic to Potential Energy - its not possible to destroy or create energy F. Conservation of Energy: Potential to Kinetic G. Potential Energy - Energy an object has because of its location or structure When I try to apply to the following, I come up with this: A: A Glass falls off the shelf & breaks B. An orange falling from a tree C. During exercise you get extremely hot. D Animals consume food (organic molecules) to make ATP to walk, breathe, etc. E. A large…Suppose a force of 60 N is required to stretch and hold a spring 0.1 m from its equilibrium position. a. Assuming the spring obeys Hooke's law, find the spring constant k. b. How much work is required to compress the spring 0.6 m from its equilibrium position? c. How much work is required to stretch the spring 0.2 m from its equilibrium position? d. How much additional work is required to stretch the spring 0.1 m if it has already been stretched 0.1 m from its equilibrium? a. k= (Type an integer or a decimal.) b. Set up the integral that gives the work done in compressing the spring 0.6 m from its equilibrium position. Use decreasing limits of integration. (Type exact answers.) Find the work done in compressing the spring. The work is (Type an integer or a decimal.) c. Set up the integral that gives the work done in stretching the spring 0.2 m from its equilibrium position. Use increasing limits of integration. dx (Type exact answers.) Find the work done in stretching the spring. The…Guide Questions: Do the following tasks and solve the problems. Use separate sheets of paper for your answers. Situation: A stone with a mass of 0.1 kg is dropped from a building with a height of 80 m. Q1. Construct the diagram showing the illustration of the problem. Q2. Calculate its potential and kinetic energies at t=Os. Q3. Calculate its potential and kinetic energies after the stone has traveled 20 meters. Q4. Calculate its potential and kinetic energies just before the stone touches the ground. Assume that air friction is negligible and the reference position is the ground.
- Choose the correct answer Your Lecturer in class made the following statement: "We do not buy electrons from Eskom but we buy electrical energy!". Electrical Poerr can be described as electrical energy unit time. Electrical Energy can be brought from ESKOM in units of R2,50 for 1 KiloWatt- hour. How much will it cost to operate a 1200 W hairdryer continuously for 30 minutes? A. R3,00 B. R1,50 C. 60c D. R6,00Topic: An average chocolate chip cookie has about 80 Calories, which is a unit of energy. Assuming you turned all of the cookie's chemical energy into electricity, how long do you think that energy could run an average 60 watt light bulb? I don't need any calculations, just your educated guess. State any assumptions or evidence you found to support your guess.4. Always begin by writing the general form of an equation. Insert numbers and units. Remember to show all work (and units). Present the solution well organized and clearly. answer should be: a) F=566N, FN=1.13x103N just need an explanation on how to get to this.
- 1) Prof. K. took a Tesla Model S for a test drive. The car weighs 4,500 lb and can accelerate from 0 to 60 mph in 2.27 seconds. The car has a 581 kW battery pack. Help Prof. K. determine the efficiency of the vehicle [Ans. to Check 55.5%]. Note: The equation we learned in class P = E v ONLY APPLIES if velocity is constant. Use the steps below to guide your thought process. Develop a symbolic relationship for the force required to move the car forward. Compute the work done by the car (in Ib-ft). Calculate the power required to do this work (in kW).I. A baseball with a mass of 0.65 kg was pitch into the air at a height of 25 meter above the ground with a velocity of 15 m/s. Determine the followinga. the baseball's kinetic energyb. the gravitational potential energy of the baseball relative to the ground. II. Solve the work done by a 600 W electric mixer in 2.3 minutes.Question #30. Please use the attached equation sheet and start with an equation from the sheet and work from there. You can manipulate anyway you want you just have to start from the equation sheet.
- A student is riding a bicycle at a constant speed of 4.13 m/s on a level road. The mass of the student and bicycle together is 81.8 kg. Assume the friction and drag is 33.7 N. What is the student's metabolic power, in Watts? Use g = 10.0 m/s2. Your answer needs to have 3 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement.A new coal-burning power plant can generate 1:5 gigawatts (billion watts) of power. Burning 1 kilogram of coal yields about 449 kilowatt-hours of energy. Complete parts (a), (b), and (c) below. a. How much energy, in kilowatt-hours, can the plant generate each month? million kilowatt-hours of energy each month. The plant can generate (Type an integer.)A weight lifter lifts a 380-N set of weights from ground level to a position over his head, a vertical distance of 2.40 m. How much work does the weight lifter do, assuming he moves the weights at constant speed? My answer was 855 This was my feedback Please fix this Your response is within 10% of the correct value. This may be due to roundoff error, or you could have a mistake in your calculation. Carry out all intermediate results to at least four-digit accuracy to minimize roundoff error. J