Two wires having same material have radii and lengths in the ratio 1: 2, If the extensions produced are equal, what is the ratio of the loads applied ?
Q: Water flows over a section of Niagara Falls at a rate of 1500 kg/s and falls 75 m. How many 60-W…
A: Given: The rate of fall of water is 1500 kg/s. The height of the fall is 75 m. The power of the bulb…
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A: Work done = Force • displacement
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A: Power: Power can be defined as the time rate of consumption of energy. Mathematically, P=∆E∆t where…
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Q: person lifted a bag of groceries 2.89 m from the floor onto a counter top using a constant force of…
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Q: a pump can discharge about 181 liters of water in one day. This work done by the pump is equal to…
A: Given data: The amount of water pumped per day, V=181 L. The height of the person for which the…
Q: A 2,400-kg pile driver is used to drive a steel I-beam into the ground. The pile driver falls 4.80 m…
A: GIVEN:- Mass of pile driver = 2400 kg Hight by which pile driver falls before coming into contact…
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Q: When an inelastic material is in a collision, the work done to deform the material is equal to…
A: In all type of collisions as no external force is involved ,so linear momentum always remains…
Q: while rearranging a dorm room, a student does 343 J of work in moving a desk 3.3 m. what was the…
A: Work done = 343 J displacement = 3.3 m Fhor = ?
Q: X- The higher the wattage of an appliance, the greater the electrical energy consumption. Y- Energy…
A: wattage measures the consumption of electrical energy. The energy per unit time is known as power…
Q: A 20 ft long cable hangs from a pulley system located on the roof of a tall building. Set up an…
A: Given the length of the cable is 20 ft and the density of the cable is 1.5 lb/ft.
Q: A lightbulb has an average power output of 125 watts. If the lightbulb is left on for an hour, what…
A: Given: The power output of the lightbulb is 125 W. The running time of the bulb is 1 hour.…
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A: Given data : Energy used by light bulb, Time taken,
Q: Suppose that your refrigerator consumes 150 W of power. If the cost of electricity is $0.15 per…
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Q: A crane is used to hoist a steel girder up to the top of a sky-scraper under construction. The…
A: Given: Weight of the steel girder: 2,755 lb (12,260 N) Distance lifted: 175.6 m (48th floor)
Q: The weight of the elevator in an Adamson University building is 4000Newtons. A 20,000Watt motor…
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Q: Fariya, a 53 kg female was instructed by the trainer to perform exercise on cycle ergometer with a…
A: Given data: The mass of the female, m=53 kg. The resistance of the cycle ergometer, M=2 kg. The…
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Q: if the power used to carry a luggage upstairs is 99 watts how much power is used to carry the same…
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Q: A) Explain the Law of Conservation of Energy in the context of this problem.
A: The law of conservation of energy states that the total energy of any system during any process…
Q: A 26 meter chain is hanging from a winch located 26 meters above the ground. If the chain weighs 4…
A: Basic: we know that the work done is given by force into. Displacement so we just find the small…
Q: 10 The diagram below shows two identical wooden planks, A and B, at different incline angles. The…
A: Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: An ice cube is placed in a microwave oven. Suppose the oven delivers 135 W of power to the ice cube…
A: Let the power is denoted by P and the energy be denoted by E.
Q: A speed boat requires 80kW to move at a constant speed of 15 m/s.What is the resistance force of…
A: Resistance is a measure of the opposition to current flow in an electrical circuit. Here, we…
Q: How LONG DOES IT TAKE for a 75 Watt light bulb to burn out if it can 4 p perform 600,0dO J of work…
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Q: A clothes dryer uses 3000 W and is run fro 1 hour. If the total useful energy to dry the clothes is…
A: Given: Power of the dryer P= 3000 W time to use dryer = 1 hour Total useful energy to dry the…
Q: A fuel tank contains 25 × 1010 BTUs of energy. The fuel is converted into electrical energy in the…
A: Given:total energy of the fuel, E = 25×1010 BTU1 BTU = 1055.06 Jhence E = 25×1010×1055.06 J =…
Q: If you have an average of 6.5 hours of online class per day for 204 days of school per year, how…
A: Given: The power consumed by the laptop is 90 W. The time is 6.5 hr for 204 days. The rate of cost…
Q: What is the average power consumption in watts of an appliance that uses 6.62 kW · h of energy per…
A: We know that the appliance uses 6.62 kW.h of energy per day and in this question, we need to…
Q: A book on a shelf has potential energy of 200J and two times the mass of a book next to it. What is…
A: Given data The gravitational potential energy for the book is given as PEh = 200 J. The…
Q: The energy consumed by 2 kW electric motor for 1 minute is Blank 1 Joules.
A: Power of electric motor: P = 2 kW = 2000 W Time interval: t = 1 minute = 60 s
Q: What is the potential energy in J of a bungee jumper standing on a 109 m bridge that weighs 85 kg?
A:
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