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: A young couple realized that they overate by 1050 Calories each. To compensate they wanted to…
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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: 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…
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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 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: 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: 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…
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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…
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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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- 5A 1000 kg car traveling at 40 m/s slows to 15 m/s. What is the initial kinetic energy of the car? What is the final kinetic energy of the car? How much work is done on the car in slowing it down? What force does the work on the car? As solved when asked in a different question, I know that the initial kinetic energy is 800,000 J, the final kinetic energy is 112,500 J, and the work is -687500 J. How ever i still need the force.3
- . You use 40 J of energy to rise a 250 N object. How far high did you lift it?1. A roller-coaster car with a mass of 1200 kg starts at rest from a point 20 m above the ground. At point B, it is 9 m above the ground. [Express your answers in kilojoules (kJ).] a. What is the initial potential energy of the car? b. What is the potential energy at point B? c. If the initial kinetic energy was zero and the work done against friction between the starting point and point B is 40 000 J (40 kJ), what is the kinetic energy of the car at point B 2. The time required for one complete cycle of a mass oscillating at the end of a spring is 0.80 s. What is the frequency of oscillation?A&B plz
- Please help me with this question: 1. Bob a man with a mass of 90kg, climbs up a 3.5m high tree. a.) How much work must Bob do in order to make it to the top of the tree, assuming that he begins and ends at rest? Bob now jumps out of the tree and land on the ground. b.) How fast will he be going just before he hits the ground? c.) First assume that he forgets to bend his knees. That means that he wil land hard - the cushions on his feet will make him move downward 1.6cm while coming to a stop, but that's it. How much force will he feel from the ground while he stops? d.) As you can see, that enormous force result in a everely injured Bob. So rewind, and let's assum Bob bends his knees this time. That means that the ground forced is in contact with him while he moves 0.45cm downward. Now how much force will the ground exert on Bob?The driver of a 760.0 kg car decides to double the speed from 21.1 m/s to 42.2 m/s. What effect would this have on the amount of work required to stop the car, that is, on the kinetic energy of the car? KE x 105 J KE = × 105 J (select) v times as much work must be done to stop the car.A hiker of mass 73 kg is going to climb to the top of Mount Tam, which has an elevation of 2,574 ft. a) If the hiker starts climbing at an elevation of 545 ft, what will their change in gravitational potential energy be, in joules, once they reach the top? Assume the zero of gravitational potential energy is at sea level. b) Repeat the above calculation for the change in gravitational potential energy, but assume the gravitational potential is zero at the top of the mountain.
- Please solve and answer the question correctly. Thank you!1.) A book of mass 0.55kg is lifted from the floor to a height of 3.5m at a constant velocity. Recall the definition of work. How much work is done by FLift? By Fg? By Fnet? How much gravitational PE does the book have at the top relative to the floor? 2.)If the object in Q1 is released from rest after it is lifted, what is its kinetic energy just before it hits the floor? What is its speed?