In a “Top Fail” video (https://openstaxcollege.org/l/21topfailvideo) , two women run at each other and collide by hitting exercise balls together. If each woman has a mass of 50 kg, which includes the exercise ball, and one woman runs to the right at 2.0 m/s and the other is running toward her at 1.0 m/s, (a) how much total kinetic energy is there in the system? (b) If energy is conserved after the collision and each exercise ball has a mass of 2.0 kg, how fast would the balls fly off toward the camera?

Q: Q15: A car is traveling at 20 Km/h. Another car. With half the mass, is traveling at 40 Km/h Which…

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Q: In the figure, a 2.1 kg box of running shoes slides on a horizontal frictionless table and collides…

A: Given:- weight of shoes = 2.1kg weight of ballet slipers = 1.6kg h= 0.63m speed of shoes = 3 m/s

Q: An object with mass 818 grams is thrown at an angle with initial speed 2.45 m/s on a level field.…

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Q: 19. If a 0.25 kg rock is thrown up with 230 J of kinetic energy, how high will it go? Show solution…

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Q: a 600 gram banana sliding north on a frictionless table at 2.5 meters per second bounces of a 400…

A: Mass of banana =600gm Initial speed of banana = 2.5m/s Mass of kiwi = 400gm Initial speed of kiwi =0…

Q: A car with a mass of 878 kg is traveling in the positive x-direction. At a certain moment, the car…

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Q: Ball A has twice the mass of Ball B. but ball B is moving twice as fast as ball A. Which of the…

A: Ball  A:  Mass MA= 2MB=2M                speed vA = vBall B:  Mass MB= M                speed vB=…

Q: 7s. 3) Suppose the two gliders in problem (2a) have Velcro on them and thus stick together upon…

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Q: A projectile of mass m is fired horizontally with an initial speed of Vo from a height of h above a…

A: Hai, since there are multiple sub parts posted, we will answer the first three sub parts. (a) The…

Q: How much kinetic energy is lost in the inelastic collisions? Where does it go? Is it still in the…

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Q: Consider a box of mass 3.5 oh being accelerated along the floor at 2.7 m/s2. m= 3.5 kg ax = 2.7 m/s2…

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Q: How fast a small car of 1573 kg move to have the same kinetic energy as a 69.8-kg sprinter…

A: mass of car = 1573 kg mass of sprinter = 69.8 kg speed of runner = 9.35 m/skinetic energy of…

Q: A car with a mass of 965 kg is traveling in the positive x-direction. At a certain moment, the car…

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Q: with v/3 QUESTION 19 A 3.2 kg box slides on a horizontal frictionless table and collides with…

A: Collision of two particle. angular velocity concept

Q: Consider a horizontal friction free air track with two gliders each moving at 1 m/s and toward each…

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Q: Two blocks of masses m and 3m are placed on a frictionless, horizontal surface. A light spring is…

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Q: Joe, standing at the edge of a cliff, sees a Chemistry instructor names Josh walking by. Armed with…

A: As per the given situation Joe drops the slime glob targeting Josh from the top of the cliff so if…

Q: A 5.70-kg object is initially moving so that its x-component of velocity is 6.00 m/s and y-component…

A: Here, we have to calculate the Kinetic energy and change in kinetic energy

Q: Two objects are connected by a light string passing over a light frictionless pulley as shown in…

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Q: Consider a 0.05 kg stick of dynamite that is launched vertically upward. At its apex, the dynamite…

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Q: A 0.80-kg block initially at rest on a frictionless, horizontal surface is acted upon by a force of…

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Q: Gayle runs at a speed of 4.35 m/s and dives on a sled, initially at rest on the top of a…

A: Given Data Mass of Gayle=mG=50 kgMass of Gayle's brother=mGB=30 kgMass of Sled=mS=5 kgInitial…

Q: 0.300 kgkg glider is moving to the right on a frictionless, ­horizontal air track with a speed of…

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Q: t’s 5:00 PM and Kurdapya needs to finish her physics module, one of the problems states that a…

A: Given: The combined mass of the spacecraft is 3.8x105 kg. The speed of the spacecraft is 12.3 km/s.

Q: Two objects with a mass of 1 x 10^-3 kg and 4 x 10^-3 kg have equal momentum. What is the ratio of…

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Q: Two children are throwing snowballs at each other atop a frozen lake with negligible friction. Both…

A: Solution: Given that mass of snow ball m1 = 1.2 kg mass of the child m2 = 31 kg snow ball speed v1 =…

Q: A 0.75 kg rocket in a fireworks display is launched from rest and follows an erratic flight path to…

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Q: 5. A0.20-kg rocket in a fireworks display is launched from rest and follows an erratic flight path…

A: Mass, m = 0.2 kgInitial velocity, vi = 0 m/sInitial height, hi = 0 mFinal height, hf = 29 mWork, W =…

Q: A 5.00 kg block moving with a velocity of 2.00 m/s on a flat horizontal surface enters a region…

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Q: A 4.0 kg box slides on a horizontal frictionless table and collides with a 1.6 kg box initially at…

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Q: A 6.30-kg object is initially moving so that its x-component of velocity is 6.00 m/s and y-component…

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Q: Two toy-cars A and Bof masses 200 g and 500 g respectively are moving with the same speed. Which of…

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Q: During a serve, a tennis racket exerts an average force of 250 N on a 80-g tennis ball, initially at…

A: Given data:  Force (F) = 250 N Mass (m) = 0.080 g Initial velocity (Vi) = 0 m/s Time (t) = 0.005 s…

Q: Ballet In the figure, a 10 g bullet moving directly upward at 500 m/s strikes and becomes embedded…

A: mass of bullet, m = 10 g  mass of block, M =5 kg   initial velocity of bullet, u = 500 m/s

Q: In the figure, a 4.6 kg box of running shoes slides on a horizontal frictionless table and collides…

A: Given:  The mass of the running shoe box is m1 =4.6 kg. The mass of the ballet slippers is m2 = 3 kg…

Q: An apple falls to the ground.  During the fall, does the earth's gravity do positive, negative or…

A: Work done on an object by a force F is :          W=F.d=Fdcosθ          where, θ is the angle…

Q: Two blocks A (m = 3.00 Kg) and B (m = 1.00 Kg) are tied by a string via a pulley as shown in the…

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Q: A 1700 kg car starts up a 130 m long hill at a speed of 20.0 m/s. If the propulsive force (up the…

A: Work done by gravity  Wg = - mgh = - 1700×9.81×48.1 = -802163.7 J  Work done by propulsive force  Wp…

Q: 600 gram banana sliding north on a frictionless table at 2.5 meters per second bounces of a 400 gram…

A:

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.