A 5.70-kg object is initially moving so that its x-component of velocity is 6.00 m/s and y-component of velocity is -2.10 m/s. (a) What is the kinetic energy of the object at this time?   (b) Find the change in kinetic energy of the object it its velocity changes so that its new x-component is 8.50 m/s and its new y-component is 5.00 m/s.

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A: As per our guidelines, we are supposed to answer only first one question in case of multiple…

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A: As per the given condition, at t2= 1.59 s velocity of body is is V=…

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

A:

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A:

Q: Which has more kinetic energy: a 0.0010-kg bullet traveling at 389 m/s or a 5.8  107-kg ocean liner…

A: Determine the kinetic energy of the bullet traveling at 389 m/s as follows.…

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A: From the expression for work-energy theorem W=Fdcosθ Here, θ is the angle between the direction of…

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Q: A 0.90-kg block initially at rest on a frictionless, horizontal surface is acted upon by a force of…

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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 bus having a mass of 6000 kg moves at a velocity of 100 km/h. If it carries 50 passengers having a…

A:

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: In what direction relative to the direction of travel can a force act on a car (traveling on level…

A: The kinetic energy of any object with a mass m moving with a velocity v is given by KE=12mv2 Any net…

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A: Given: The mass (m) of the tiger is 116.3 Kg. The initial velocity (u) is 0 m/s. The final velocity…

Q: m/s 3 1 2 3 'y m/s 1. An object of mass of 4.0 kg is initially moving with a velocity ū, as shown.…

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

A:

Q: A 0.40kg block initially at rest on frictionless horizontal surface is acted upon by a force of 3.0…

A: mass of the body m=0.40 kg Force applied F=3 N Displacement of the body d=5.0 m Initial velocity…

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

A: a) Work done when the applied force and distance are parallel is given as,…

Q: . Two 3.0 g bullets are fired with speeds of 40.0 m/s and 80.0 m/s, respectively. What are their…

A:

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A: The force acting on the ball is 133.03 N

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Q: Smouth swface F2.50m he 3.00m E; Ei + WNC A 34.2 kg block slides with a velocity of 10.22 m/s to the…

A: Frictional force on horizontal = μ mg   = 0.325 ×34.2 × 9.8  = 108.93 N

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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: A 600 N volleyball player lands from a spike attempt and immediately jumps up to try for a block.…

A: Given, W= 600 N We know that, W= mg, where g=9.8m/s². Therefore, m= 600/9.8 = 61.22448979 kg

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: How fast would a(n) 72 kg man need to run in order to have the same kinetic energy as an

A: the kinetic energy is directly proportional to the product of mass and the square of the velocity.

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…

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.