A railroad engine coasting at 10 km/h runs into a stationary wagon. The engine weighs five times as much as the wagon. assuming both of them couple together, how fast are they moving after the collision? Solve the problem and show all the work.

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Q: A baseball with a mass of 275 g is pitched and reaches the catcher with a speed of 25 m/s. In…

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Q: A 0.25kg arrow with a velocity of 12m/s to the west strikes and gets stuck in the cente a 6.8kg…

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Q: y X Consider a Cart rolling down hill with no friction. Only include the cart's energy and momentum…

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Q: In a “Top Fail” video (https://openstaxcollege.org/l/21topfailvideo) , two women run at each other…

A: Given data The mass of both women is m = 50 kg. The velocity of one woman to the right is v­1 = 2…

Q: Two ice skaters begin at rest then push off each other on very smooth ice and glide away with…

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Q: In the figure here, a stationary block explodes into two pieces L and R that slide across a…

A: SOltuion: mL = 3.1 kg μL=0.45μR = 0.56dL =0.48 mdR = 0.42 m

Q: An inelastic collision is one in which kinetic energy before the collision equals kinetic energy…

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Q: A billiard ball of mass 0.18 kg is uniformly accelerated from rest and travels 162 cm in 0.9 s.…

A: The mass of the billiard ball is m = 0.18 kg. The initial velocity of the billiard ball is u = 0…

Q: (https://openstaxcollege.org/l/21topfailvideo), two women run at each other and In a "Top Fail"…

A: The system's total kinetic energy must be determined. We are aware that each lady weighs 50 kg,…

Q: A person of mass 71 kg is thrown down a slide until he falls into a swimming pool. The initial…

A: Mass (m) of a person = 71 kg     Height (h) of water = 12 m                     Speed (v) = 12.7802…

Q: Mike then takes his now 1175 kg car and crashes it at 50 m/s into the back of a 1600 kg Jeep…

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Q: There is a 32cm tall ramp on a table that is 45cm tall.  The ramp has an incline of 42° to the…

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Q: A 45 g marble moving at 2.3 m/s strikes a 29 g marble at rest. Assume the collision is perfectly…

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Q: During an ice show, a 100.0-kg skater leaps with an initial of 4.00 m/s into the air and is caught…

A: Given data: Mass of first skater, m1=100.0 kg Initial velocity of first skater,u1=4.0 m/s Mass of…

Q: How much power is needed to lift a 12.5 kg sack of rice from the ground to a height of 1.5 m within…

A: According to guidelines we need to solve only first question kindly repost other questions in the…

Q: During an ice show a 55.0 kg skater leaps into the air and is caught by an initially stationary 55.0…

A: Given: Mass of first skater, m1= 55.0 kg Initial velocity of first skater, u1= 4.00 m/s Mass of…

Q: By an explosion, a stationary object is shattered into two pieces: A and B. The kinetic energy of…

A: As the object is at rest before the explosion it has a momentum that is zero. Since no external…

Q: Two clowns at a circus are performing an act in which one clown jumps down on a seesaw and launches…

A: Given that: Mass of clone 1 = 75 kg height of clone 1 = 5 meter Mass of clone 2 = 50 kg

Q: When is the mechanical energy of a system conserved? no external forces versus no friction or…

A: The mechanical energy of a system is the sum of the kinetic and potential energy of that system.

Q: A 0.017-kg bullet is fired into a stationary block of wood of mass of 5.5 kg. The relative speed of…

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Q: A piece of putty is dropped vertically onto a floor, where it sticks. A rubber ball of the same mass…

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Q: A marble , mass 150g, is fired from a toy spring gun into a lump of clay that rests on the edge of a…

A: Given data: The mass of the marble is m1=150 g. The clay lump is situated at height is h=2.00 m.…

Q: In a Broadway performance, an 89.5 kg actor swings from a 4.00 m long cable that is horizontal when…

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Q: A billiard ball of mass 0.15 kg is uniformly accelerated from rest and travels 64 cm in 0.8 s.…

A: The mass of the billiard ball, m=0.15 kg The displacement of the ball, ∆x=64 cm = 0.64 m The time…

Q: In the figure, block 1 of mass m₂ slides from rest along a frictionless ramp from height h= 3 m and…

A: Write the energy conservation equation for the block on the ramp and substitute the corresponding…

Q: oes every moving body posses both kinetic energy and momentum? Explain.

A: Answer Kinetic energy is the energy possessed by an object due to its motion. Momentum of a body is…

Q: I need help coming up with what physics principles that relate “a bird egg falling from a tree onto…

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Q: A railroad car of mass 2.55  104 kg is moving with a speed of 3.94 m/s. It collides and couples with…

A: (a)Use the law of conservation of momentum.The equation for the given situation is,

Q: A train engine weighs 4 times that of a railroad car. The engine collides into the car (initially at…

A: let the mass of the railroad  car is=mMass of train engine will be=4 mfrom conservation of linear…

Q: Consider an experiment where you drop a basketball and let it bounce until it stops. Is the kinetic…

A: Given statement : "drop a basketball and let it bounce until it stops"

Helmholtz Free Energy

The Helmholtz free energy is a thermodynamic potential used to calculate the measure of useful work from a closed system. This system is kept at constant temperature and volume. German physicist Hermann Helmholtz introduced this concept in 1882.