Q: 1. How much work is needed to lift an object with a weight of 350N to a height of 3m?
A: If you want to do 2nd questions, please reupload the second questions and mensions the only one…
Q: 13) A person runs up a long flight of stairs in 10 seconds. If the person’s weight is 600 N and the…
A: Given values: Person's weight or force due to gravity,F=600 N Vertical height or displacement, s=20…
Q: What would be the power output (in-hp) of a 1750kg car if it can acend to the top of a 285m high…
A: The expression of work- energy theorem,
Q: 4) How many watts of power does a man with a weight of 600.0 N have when he climbs a flight of…
A:
Q: A 72.3 kg student runs up the stairs of a football stadium to a height of 11.1 m above the ground in…
A: Power is defined as the Work Done or Energy per unit time.P=Et The energy of an object of mass m at…
Q: 3. If a riding lawnmower engine exerts 19 hp in one minute to move the mower, how much work is done?…
A: (3) The power exerted by a lawnmower’s engine is, The time taken by the mower is,
Q: 4. How much work is done on a 5 kg block if it is to be moved on a ramp 30° above the horizontal and…
A:
Q: 2. How long must a 100-W light bulb run in order to consume a million joules of electrical energy?…
A: (2) Given data: Power (P) = 100 W Electrical Energy (E)…
Q: 4. How much work is required for a 1200-kg automobile to increase its speed from 30.0 m/s to 40.0…
A: Energy is capacity to do work. There is one theorem which tells that work and energy are…
Q: 1903 kg car travels at a speed of 11.7 m/s. what is its kinetic energy? answer in J units
A: Given Data: The mass of the car is, m = 1903 kg. The velocity of the car is, v = 11.7 m/s. The…
Q: 18. How much work is needed for a 73-kg runner to accelerate from rest to 7.7 m/s?
A: Given Mass of runner m = 73 Kg Initial speed u = 0 m/s Final speed v = 7.7 m/s To find Work done by…
Q: 7. A ball is raised 5.0 m off the ground and weighs 750 g. What is its potential energy? 750 grams =…
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Q: How long will it take a 742-kg car with a useful power output of 43.2 hp (1 hp equals 746 W) to…
A: Mass of car (M) = 742 kg Output power of car = 43.2 hp Power (P) = 43.2(746W) = 32227.2 W Speed…
Q: 5. What potential energy does a 60.0-kg gymnast acquire in climbing 7.00 m up a vertical pole?
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Q: 1. What amount of work is done when a 5 newton object is moved a distance of 10 meters?
A: Given data: Force (F) = 5 N Distance (d) = 10 m Required: Work done (W)
Q: 13. A machine does 192 J of work in 24 Sec. What is the power of the machine?
A: Given data The work done by the machine is given ad W = 192 J. The time duration is given as T = 24…
Q: a stone is dropped from rest from the top of the wall (34.2m) at the start of the drop the GPE was…
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Q: 5. An object has a kinetic energy of 14 J and a mass of 17 kg , how fast is the object moving?
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Q: 7. What work is done by a forklift raising a 583 kilogram box 1.2 meters?
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Q: 3. What is the kinetic energy in joules of 953 g motorcycle moving 81 m/s?
A: The mass of the motorcycle is m=953 g=953×10-3 kg The velocity of the motorcycle is v=81 m/s
Q: 3. What is the speed of a 0.145 kg baseball if its kinetic energy is 109 J?
A: Write the given values with suitable variables. m=0.145 kgK=109 J Here, m denotes the mass and K…
Q: 10. The power of a motor is 40 kW. At what speed can the motor raise a load of 20,000 N ? Ans. 2 ms
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Q: 6) A crane exerts 56,000 Newtons of force over a distance of 4.5 meters. How much power was…
A: solution is given by
Q: A pallet weighing 575 N is lifted a distance of 20.0 m vertically in 10.0s. What power is developed…
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Q: A person weighing 233 N climbs a flight of stairs 6.0 m high in 6.0 s. What power is required to…
A:
Q: 7. Determine the total work required to accelerate a vehicle of mass 1500 kg from 10 m/s to 25 m/s.
A: Given, Mass , m = 1500 kg Initial velocity = 10m/s Final velocity = 25m/s Work done = change in…
Q: 8. How much time is needed to produce 720 Joules of work if 90 watts of power is used?
A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,…
Q: An electric forklift truck is capable of doing 4.0x 105J of work on a 4.5x 103 -kg load. To what…
A:
Q: 15. The third floor of a house is 8.0 meters above street level. How much work is needed to move a…
A: Potential energy : It is the energy held by an object because of its position relative to other…
Q: 23. A 172_N force is applied to a stiff spring and stretches the spring 7.7_cm. Find the potential…
A:
Q: 5. How much potential energy does a car gain if a crane lifts the car with a mass of 2,500 kg and 20…
A: Mass of the car, m = 2500 kg Height that car lifted to, h = 20 m
Q: 7. A force of 50 lbf is being applied to a box causing it to move at a rate of 20m/s. Find the power…
A:
Q: 3. A 1.00 kg book falls 0.75 m from a desk to the floor. How much potential energy did the book…
A: Given data :- mass m = 1.00 kg loss in height h = 0.75 m
Q: 25. A donkey is pulling a sled at a velocity of 3.5m/s. If the donkey’s power output is 890 W, what…
A: Let F be the force that the donkey exerts on the sled. Given that a donkey is pulling a sled at a…
Q: What is the kinetic energy of a 3000-lb automobile moving at 55.0 mi/h?
A: Here given that the mass of a automobile is 3000 lb also given that the velocity of that automobile…
Q: 4. An 800 N student runs up a flight of stairs rising 6 meters in 8 seconds. What is the average…
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Q: 2 How much energy does it take to drive a 200 Hp car at 20 % power for 3 hours if it is 12 %…
A:
Q: How long will it take a 816-kg car with a useful power output of 47.2 hp (1 hp equals 746 W) to…
A: Given data: Mass (m) = 816 kg Power output (P) = 47.2 hp 1 hp = 746 W Speed (v) = 19.6 m/s Air…
Q: 4. A train of mass 200 tonnes moves on a level track having a track resistance of 85 newtons per…
A:
Q: What is the power of a motor that does 700 J of work in 35 s?
A: Given data: Work (W) = 700 J Time (t) = 35 s Required: Power (P)
Q: The power of a small motor in a toy can be calculated by the amount of work it does in a period of…
A:
Q: 2. How much works is done by a force of 35 N that was applied to push a cart of 8.5 m along the…
A:
Q: 8. An object has a kinetic energy of 88 J and a mass of 45 kg , how fast is the object moving?
A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…
Q: 20.) What is the power output of a machine that can transform 35 000J of energy in 5 minutes?
A: The power output is defined by P=Et where E is the energy. t is the time taken. Given E=35000J…
Q: 8. If a powerlifter raises a 1,000 N weight a distance of 2.0 meters in 0.5 seconds, what 1,000 W is…
A: The rate of work done is defined as the power. To solve the given question at first we will…
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- 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.What is the difference between when work is done by a system and when work is done on a system? a. Work done on a system causes an increase in the energy of the system. O b. Work done by a system causes an increase in the energy of the system. O c. С. None of them makes ay difference in the energy of the system.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…
- A new coal-burning power plant can generate 1.9 gigawatts (billiori watts) of power. Burning 1 kilogram of coal yields about 447 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.)Docs login - InterCheck... USI Student Portal w White Fox Boutiq... WorkJam All Candles pols Add-ons Help Last edit was seconds ago xt BIUA Arial 11 3. 4. 4. 9. Select the most true statement from the following: a. Joule (J) is a unit of work. b. Joule (J) is a unit of energy. c. Joule (J) is a unit of power. d. Joule (J) is a unit of both work and energy. e. Joule (J) is not a standard SI unit of energy. 10. Two eggs of equal mass move with equal velocity. Egg A hits the floor and breaks, while egg B hits the blanket instead. Compare the work done on the eggs in reducing their velocities to zero. a. More work is done on A than on B. b. More work is done on B than on A. C. The amount of work done is the same for both. d. Work was done one B, but no work was done on A because the wall did not move. e. Work done depends whether or not eggs are free-range.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. R6,00
- 2. A 59 kg person climbs up the stairs with a height of 5.5 m. a.How much work does the person do? b.What is the increase in GPE of the person at this height? c.Where does the energy come from to cause this increase in GPE?4. A 1000 kg-roller-coaster car ahown in figure is pulled up to point 1 where it is released from rest. Assuming no friction. a. What is the mechanical energy of the roller-coaster car? b. calculate the speed of the roller-coaster car at points 2. c. calculate the speed of the roller-coaster car at points 3. d. calculate the speed of the roller-coaster car at points 4.1) 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).
- Section 1: Fill in the blanks vwith either POTENTIAL or KINETIC to make the statements true 1. A bike moving down a hill has Lenergy. 2. A bike stopped at the top of a hill has energy. 8,8 3. An apple in a tree has energy. 4. An apple falling from a tree has energy. 5. A metal spring stretched out has energy. 6. A metal spring bouncing has energy. 7. If a light is on it has energy. 8. If a light is off it has energy. 9. A sleeping dog has Lenergy. 10. A dog jumping for a treat has energy.How much energy is required to run a 35 W light bulb for 4.0 min? a. 840 J b. 1400 J c. 140 J d. 8400 JPROVIDE COMPLETE AND ORGANIZED SOLUTION, IF NECESSARY. INCLUDE UNITS IN THE SOLUTION & FINAL ANSWER. ENCLOSE FINAL ANSWERS IN BOXES 5. A man (on a coaster) slides down a roller coaster, starting from rest, from an initial height of 25 meters as shown in the figure below. The initial potential energy of the man(with the coaster) is 2.6 x 10° J. Assume there is no friction between the coaster and track. A. What is the initial KE of the system? B. What would be the KE of the system at point b? C. What is the KE of the system at point c? D. What is the Speed at point C?