Conservation of Energy A Calculate /00 m
Q: What is the average useful power output of a tractor that does 290O J of useful work in 4.8 hours?…
A: We know that, Power= Work done per unit time Where time is in seconds , Mathematically, P = W x t…
Q: Claus, who hbs up the Os. Find S
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Q: A different car accelerated from 0.12 m/s to 0.52 m/s. The acceleration of the car was 0.040 m/s2.…
A: Initial speed of the car is u = 0.12 m/s Final speed of the car is v = 0.52 m/s Acceleration of the…
Q: A power mower does 8 x 104 J of work in 0.4 h. What power does it use?
A: Work done, W = 8 x 104 J = 80000 J Time taken, t = 0.4 h = 0.4 x 3600 s = 1440 s Power of the…
Q: A casting of mass 150 kg is lifted 4 meters in 15 seconds by means of a crane. What is the power?
A: Given data The mass of the casting is given as m = 150 kg. The casting is lifted up to h = 4 m. The…
Q: . Jordan is 32kg and walks up stairs. She travels a vertical distance of 2 meters. Determine how…
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Q: Calculate the force needed to do 500 J of work while pulling a cart a distance of 3.4 m.
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Q: A car accelerated from 0.12 m/s to 0.52 m/s. The acceleration of the car was 0.040 m/s2. The work…
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Q: A 67.3-kg boy is surfing and catches a wave which gives him an initial speed of 1.60 m/s. He then…
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Q: What is the spring potential energy stored in a spring with a spring constant of 678N/m when it is…
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Q: Find the mass, in kilograms, of an object that requires 6,718 J of work to lift it to a height of 24…
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Q: A 85 lb mass stretches a spring 3 inches. Find the work done by the force to stretch the spring 7…
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Q: 3. A jet engine exerts 1.0 x 105 N of thrust (force) while moving an airplane forward when the speed…
A: Given Thrust force (F) = 1.0×105 N Speed (v) = 900 km/h = (900×1000)…
Q: A machine puts out 400 W of power for every 1000 W put into it. The efficiency of the machine is
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Q: how to find if an object has an initial mechanical energy
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Q: Two dipoles are oriented as shown in the diagram below. Each dipole consists of two charges +q and…
A: In given question, point A is an axial point for the first dipole but an equatorial point for 2nd…
Q: Two solenoids A and B, spaced close to each other and sharing the same cylindrical axis, have 380…
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Q: Find the spring constant k for a spring if a force of 19 N stretches the spring 0.46_m.
A: Given data: Force (F) = 19 N Stretch in Spring (x) = 0.46 m Required: The spring constant (k)
Q: if an object moving from A point to B its kinetic energy at A = 1.2 J and its kinetic energy at B…
A: Kinetic energy at A KA = 1.2 J Kinetic energy at B KB = 7.5 J
Q: A forklift uses 5200 J of energy to lift a 50.0 kg mass to a height of 4.0 m at a constant speed.…
A: To calculate the efficiency of the forklift, we need to compare the useful output energy (the…
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- 4. Sasha lifts a couch from the ground floor of her house to the attic. If the couch has a mass of 120 kg and is lifted 8.2 m, then what is the energy gained by the couch? JI. General setup - 0.5 m Object of known size (e.g., piece of paper) String Nut / Object II. Prediction questions and background physics For this experiment, you will release the object from rest and observe its subsequent motion. Before conducting the experiment or doing your analysis, answer the following questions based on your understanding of the physics of motion and conservation of energy:If an airplane engine develops a force of 146195 Newtons forward on the airplane, what is the power (in hp) developed by the engine if the airplane is flying at 179 meters/sec?