Sienna is getting her books . To lift her books from a table , 50 J of work is done . How much power is required to lift the books in 0.5 s ? A.100 Watts B. 25 Watts C. 500 Watts D. 200 Watts

Q: How much work must be done to stop a 1100-kg car traveling at 111km / h ? (Hint: You will need to…

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Q: A 6-kg block moves along the x-axis. Its position changes with time as x=2+t-4t where x in meters…

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Q: A bicycle racer, with a mass of 84 kg, is has the same amount of kinetic energy as a car traveling…

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Q: A car does a work 15060 J in just 3.00 seconds. What is the power output of the car in horsepower

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Q: 5. Fill in the missing potential and kinetic energies in the diagram. Assume that the incline is…

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Q: Q1. A force of 7N as on an object. The displacement is, say 8 m, in the direction of the force. Let…

A: Work done on an object is given by the formula, Work done = (Force)(Displacement), where the…

Q: A 630-kg car speeds up from rest to 43 mph in 3.2 seconds. What is the work done on the car and what…

A: Given Data: The mass of the car is, m = 630 kg. The initial velocity is,  u = 43 mph. The final…

Q: Question 8 A machine does 2500 J of work in 1 min. What is the power developed by the machine? A 42…

A: Given Work done by Machine = 2500 J Time taken by Machine = 1 min = 60 sec We have to calculate the…

Q: Ralph uses a 2000N force to push his car along a road for 1000 m. It takes him500 s to do this. a-…

A: a) The expression for find work is W=Fd Substitute values in the above equation W=2000N1000m=2×106J

Q: 4. Children in a tree house lift a small dog in a basket 3.85 m up to their house. If it takes 201 J…

A: Given data: Height (h) = 3.85 m Work (W) = 201 J Required: The combined mass of the dog and the…

Q: A 655-N Marine in basic training climbs a 11.5-m vertical rope at a constant speed in 9.00 s. What…

A: Given : F = 655 N h = 11.5 m t = 9 s

Q: Spiderman uses his spider webs to save a runaway train moving about 60 km/h. His web stretches a few…

A: The initial velocity of the train,  v=60 km/hr The mass of the train, m=104 kg The moving object…

Q: A 5.4 kg textbook is raised a distance of 23.6 cm as a student prepares to leave for school. How…

A: Given : m = 5.4 kg d = 23.6 cm = 0.236 m

Q: The rope is held at an of 628 N is applied to the rope. How rce on the rope do? 3. A 1600-kg car…

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Q: A child and sled with a combined mass of 56.0 kg slide down a frictionless slope. If the sled starts…

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Q: A motorcycle can go from 0-60 mph in 3.5 sec.  The mass of the motorcycle is 450 kg.  (a)  What is…

A: The work done is equal to the change in kinetic energy. The power is defined a the rate of doing…

Q: 1. A 10 kg at a mail facility slides down a 10 meter sorting chute. The height of the chute is 2…

A: As per guidelines we are suppose to do only 3 subpart from multipart question. Please post the rest…

Q: How much work must be done to stop a 1200-kg car traveling at 115 km/h? (Hint: You will need to…

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Q: A 20 kg brick moves along an x axis. Its acceleration as a function of its position is shown below.…

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Q: A bicycle and rider going 13 m/s approach a hill. Their total mass is 75 kg. (a) What is their…

A: The initial velocity,

Q: A student, starting from rest, slides down a water slide. On the way down, a kinetic frictional…

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Q: A 630-kg car speeds up from rest to 43 mph in 3.2 seconds. What is the work done on the car and what…

A: (a) Work done is equal to change in kinetic energy W1=Ekf-Eki=12mvf2-vi2=12630 kg19.2 ms2-0…

Q: Question7 A boy with mass m - 50 kg walks up at h-2 m high stairs at a constant speed in t-25 s.…

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Q: Q3. Find the amount of work done in lifting a body of 5 kg through 10 m. Take g = 10 m/s?. O 5J O 15…

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Q: 2. Deniz slides a 1 kg toy for 3 m along the flor to his sister Derya. The toy is moving at 4 m/s…

A: Given: mass of toy, m = 1 kg initial velocity of toy, u = 4 m/s final velocity of toy, v = 2 m/s…

Q: A child does 350 J of work while pulling a box from the ground up to his tree house with a rope. The…

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Q: 16. Starting from rest, a 1.9 × 10--kg flea springs straight upward. While the flea is pushing off…

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Q: The equation used to solve for Power is: P = W How can we rearrange this equation to solve for time?…

A: The power can be determined by the formula: P=Wt Here, W denotes the work done and t denotes the…

Q: A heavy rope, 50 ft long, weighs 0.9 lb/ft and hangs over the edge of a building 140 ft high. a. How…

A: Given: Length of rope (l) = 50 ft. Weight of rope (w) = 0.9 lb/ft. Height of building (h) = 140 ft.

Q: A baseball has a mass of 0.150 kg. If 250 J of work is done on the baseball, what is the magnitude…

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Q: Q8. A 100-kg file cabinet is sliding down on a frictionless ramp, it moves a distance of 8.0 m.…

A: Given data- mass of file cabinet m=100 kg distance d=8.0 m,  angle θ=10.0°

Q: A 155g baseball is thrown so that it acquires a speed of 35m/s .  a) What is it's kinetic energy .…

A: (a) The kinetic energy of the baseball can be written as KE=12mv2KE=12155 g×10-3kg1 g35 m/s2KE=94.9…

Q: 1. A box with a mass of 3.0 kg is accelerated from rest by a constant force across a floor at a rate…

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Q: Work & Energy: A child does 350 J of work while pulling a box from the ground up to his tree house…

A: Work done on box, W= 350 J Distance that box is pulled above ground, d=4 m And acceleration due to…

Q: 5. Socrates struggled and strained as he lifted an 82.0-kilogram mass vertically a distance of 3.00…

A: Given that,  Mass, m = 82.0 kg  Distance, d = 3.00 m  Time, t = 5 minutes = 300 seconds  So,…

Q: does more work than Kai and also uses more power than Kai. 41) A 2 year old on a pet jaguar…

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Q: newtons for å A boy raises a 20 kg rock to a height.of 1.5 meters. a) What force does the boy use to…

A: Mass of rock (m) = 20 kg height (h) = 1.5 m

Q: rope applies a horizontal force of 500 N to pull a crate a distance of 2 m across the floor. A…

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Q: Part A pu throw a 5.5 g coin straight down at 4.0 m/s om a 25-m-high bridge. How much work does…

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Q: SA1) A 50-kg cavan of rice is pulled along a 10-m horizontal ramp with a force of 750 N. If it is…

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Q: A donkey pulls on a wagon with 25 N of force until it completes 150 J of work how far did the donkey…

A: Given- Force applied by donkey (F) = 25 N Work (w) = 150 J

Q: 2. Shelley pulls her little sister in a wagon with a constant force of 50 N over a distance of 100…

A: Since you have asked multiple questions in a single request, we would be answering only the first…

Q: A 20 kg toddler tries hard to lift his mom’s 12 kg KSU book bag, applying a force of 25 N. The bag…

A: Given information: The mass of the bag (m) = 12 kg The force applied by the boy (F) = 25 N The…

Q: A model train powered by an electric motor accelerates from rest to 0.520 m/s in 23.0 ms. The total…

A: U= 0m/s  V= 0.52m/s  t= 23 ms  M= 660g  =

Q: A boy lifts a 30.0 N dragon 2.0 meters above the ground. How much work did the boy do on the dragon?…

A: Given data: Weight of dragon (w) = 30 N Height form the ground (h) = 2.0 m Need to determine the…

Q: How much work must be done to stop a 1300-kg car traveling at 110 km/h? (Hint: You will need to…

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Instantaneous Power

Power is defined in physics as the amount of energy transmitted or transformed per unit time. The watt is the unit of electricity in the International System of Units, equivalent to one joule per second.