How much energy in joules does the laptop battery hold when fully charged? Give your answer significant digits. 540 Question 8 [Numbers change] If this amount of energy were used to lift a person with mass 92 kg off the ground, how far up would it lift them (in meters to 0.1 m precision)?
Q: A chain of length 4 m is kept on a table. 2 m of the chain hangs freely from the table’s edge. The…
A: Given: length = 4 m table = 2 m mass of the whole chain = 8 kg
Q: 1. A car starts at rest, and ends up with 1500 J of KE. How much Work was done on it?
A: As per our guidelines, we are supposed to answer only first one question in case of multiple…
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Q: 4. A runner has 250 J of KE. A short time later, he has 150 J of KE. How much Work was done on him?
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Q: kg mass starts from rest at point A and moves along the x-axis subject to the potential energy shown…
A: Given: Mass of object (m) = 2.3 kg.
Q: A 95 kg man runs up a 20 m high stairs at a constant speed. If it takes him 8 seconds to reach the…
A: The rate of doing work is called power.
Q: 30 kg box is placed on a 1.9 m tall shelf. a). What is the gravitational potential energy of the…
A: mass = m = 30kg height = h = 1.9 m
Q: A motorcycle at rest has 550 J of Work done on it. What is its final KE?
A: Given data: Initial velocity (v0) = 0 m/s Work done (W) = 550 J Required: Final kinetic Energy
Q: How much work does gravity do on the suitcase?
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Q: 1. If you pushed a 20 kg box across the floor for a distance of 60 m with a force of 15 N how much…
A: #1 Given data: The mass of box is m=20 kg. The distance traveled by the box is d=60 m. The force…
Q: My 3.25 kg cat, Pretty Kitty, likes to sit on the tallest perch in her cat tree, 2 m tall. What is…
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Q: The potential energy of a system of particles in one dimension is given by: U(x) = 5-x+3x? – 2x³…
A:
Q: Q23.) A boy of mass 50 kg runs up a staircase of 45 steps in 9 s. If the height of each step is 15…
A: Given: m=50kg g=10m/s2 t=9s h=45*15 =675cm =6.75m
Q: Energy of a Roller Coaster Car 500 450 400 350 According to the graph, what is the relationship…
A: The energy of the roller coaster is represented in the graph
Q: 102 kg man climbs a 3.2 meter high staircase at constant speed. How much work has he done? (=9.8 m/s…
A:
Q: what is the kinetic energy in joules of a 1120-kg automobile traveling at 88 km/h? 2. how much…
A: Given, Mass, m = 1120 kg Speed, v = 88 km/h = 88×518=24.44 m/s
Q: The truncated conical container shown is full of a beverage that weighs 0.5 oz/in³. The container is…
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Q: . A 0.10-kg steel ball drops to the floor from a height of 2.0 m and then rebounds to a height of…
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Q: A baby carriage is sitting at the top of a hill that is 21 m high. The carriage with the baby has a…
A: The total energy of an object or system is the sum of its kinetic energy(K) and potential energy(U).…
Q: A car (m=1000 kg) is initially moving at a speed of 20 m/s (~45 mph) when the driver hits the brakes…
A: Work done is equal to change in kinetic energy W=∆EK=12mvf2-vi2=121000 kg0-20 ms2=-200000 J=-200 kJ
Q: 5. The diagram below shows points A, B, and C at or near Earth's surface. As a mass is moved from A…
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Q: (1) Suppose you lift a stone that has a mass of 5.5 kilograms off the floor onto a shelf that is 1.5…
A: Given data: Mass (m) = 5.5 kg Height (h) = 1.5 m Required: The work done (W)
Q: You lift your 8.4 kg back pack off your bedroom floor and place it on your desk. It your desk is 2.7…
A: Given mass m = 8.4 kg displacement = height h = 2.7 m
Q: How much potential energy does a person of mass 90 kg have if they are standing at the top of a…
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Q: Calculate the work done in lifting a 500-N barbell 2.2 m above the floor. (What is the gain of…
A: Given: Force, F = 500 N Height, d = 2.2 m
Q: Gravitational Potential Energy: A stone s held at a height h above the ground. A second stone with…
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Q: A man climbs onto a wall that is 7.76 m high and gains 1723.8 J of potential energy. What is the…
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Q: Problem A moving electron has a Kinetic Energy K1. After a net amount of work is done on it, the…
A: Initial kinetic energy is, K1=12mv12 Final kinetic energy is K2=12mv22 Given that v2=14v1 So,…
Q: A block is at rest. A 40.0 N force directed 38.0° above horizontal pulls the block 8.00 m across…
A: Given data: Initial velocity (v0) = 0 m/s Force (F) = 40.0 N Angle (θ) = 38.0° Displacement (d) =…
Q: How much work is done by a person lifting a 4.1 kg object from the bottom of a well at a contact…
A: Given Data: The mass of an object is, m=4.1 kg The contact speed is, v=2.2 m/s The time required for…
Q: (c) Using your answer from the previous part, roughly how much kinetic energy (in Joules) was…
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Q: There's a good chance you're completing this HW on a laptop. A typical laptop uses about 15 W of…
A: How much energy does the laptop battery hold when it is fully charged? Given, Power(P)=15 W…
Q: What is the kinetic energy of a 1200 kg car whose velocity is 40 km/hr?
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Q: A 99.2 kg object rises by 35.8 m. How much potential energy (in joules) has this object gained?
A: Potential energy(P) is given by:- P=mgh Where, m=99.2kg g=9.81m/s^2 h=35.8m
Q: What are informed about a particular force: "the force is inversely proportional to the cube of the…
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Q: About 50,000 years ago, a meteor crashed into the earth near present-day Flagstaff, Arizona.…
A: Consider the mass of meteor is about 1.4×108 kg which hits at a speed of 12×103 m/s.
Q: Determine the energy required to accelerate a 1,155-kg car from 10 to 60 km/h on an uphill road with…
A:
Q: A man claiming a mountain carrying a bag with mass 7.5 kg, after 30 min he reach 8.2 m height from…
A: Given data *The mass of the bag is m = 7.5 kg *The given time is t = 30 min *The height from the…
Q: A weight lifter raises a 170 kg barbell from the ground to a height of 1.5 m. What is the barbell's…
A:
Q: 33. What is the kinetic energy of a 1.2 x 103kg car whose velocity is 35 km/hr? Group of answer…
A: Given Mass of the car is given as m=1.2×103 kg Velocity of the car is, v=35 km h=35 km1 h×1000 m1…
Q: 1. Why are we more tired after running upstairs in a few seconds than after walking upstairs in a…
A: Power is the rate at the energy being transferred or energy being converted from one form to…
Q: A 0.45 kg ball is kicked up in the air. It falls back on the ground after attaining a height of 10…
A: Given data The mass of the ball is m=0.45 kg The height attained by the ball is s=10 m The final…
Q: 5. A 485 g book is resting on a desk 62 cm high. Calculate the book's gravitational potential energy…
A: Given that, Mass of book (m) = 485 g = 0.485 kg Height of desk (h) = 62cm = 0.62m
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