52. (II) You drop a ball from a height of 2.0 m, and it bounces back to a height of 1.6 m. (a) What fraction of its initial energy is lost during the bounce? (b) What is the ball's speed just before and just after the bounce? (c) Where did the energy go?

Q: 4. you throw a ball straight up with a speed of 17.4 m/s. calculate how high the ball goes using the…

A:

Q: 4. A 50 gram golf ball is shot from the top of a cliff at a speed of 20.0 m/s. The ball lands on the…

A:

Q: f) A 5kg mass hits a wall with a speed of 5 m/s and rebounds with a speed of 3 m/s in the opposite…

A:

Q: 5.) A skydiver, mass 60 kg, jumps out of an airplane traveling 65 m/s horizontally at an altitude of…

A: Work energy theorem will be applied here.

Q: When a kid swings back and forth on a swing, where do they have the least Gravitational Potential…

A: Given data: Kid swings back and forth Required: Location where the Gravitational Potential energy is…

Q: Calculate A) the conservative force described by the potential energy function U(x,y,z) = ½ k (2x³…

A: We have given a potential energy U(x,y,z)=1/2k(2x3+5y2-3z4) We know that a conservative force can we…

Q: A 150 gram object is launched vertically at a velocity of 25 m/s . Earth's gravity is present.…

A: Initially, the object is launched vertically. Therefore, it has kinetic energy:    K.E.=12mv2   When…

Q: 54. (II) A projectile is fired at an upward angle of 38.0° from the top of a 135-m-high cliff with a…

A:

Q: A 2-kg ball is held 6 m above the ground. Relative to the ground its potential energy is A) 60 J.…

A: Given data:  Mass (m) = 2 kg Height (h) = 6 m Required: Potential energy relative to the ground

Q: It took a 36,000 Newton force to make a car move 1,500 meters. How many Joules of work is performed…

A: Given: Force F=36000N Displacement d =1500 m To find: Work W=??

Q: How much work is required to stop an electron (m = 9.11 × 10–31 kg) which is moving with a speed of…

A: Given Data: The mass of an electron is, m=9.11×10-31 kg The initial speed of an electron is,…

Q: m A person is pushing a wooden crate of mass mo = 20 kg at a constant speed vo = 1.2– for Ax = 3 m…

A: Given: Mass of the wooden crate, mo = 20 kg Speed of the crate, vo = 1.2 m/s Distance moved, ∆x = 3…

Q: A tennis Ball bounces on the floor three times, and 23% of its kinectic energy is lost and…

A:

Q: 8) A baseball of mass m arrives at a batter with speed v. The batter swings, and hits the ball. The…

A: The workdone by the bat is nothing but the change in the kinetic energy of the ball. So, all we have…

Q: A roller coaster design is presented to you where the maximum speed of the car will be 9.00 meters…

A: according to the conservation of energy, the total mechanical energy at the lowest point of the…

Q: How fast must the swim

A: Sloth must swim at speed of 0.119 m/s Explanation is in next step.

Q: If you triple the velocity of an object, by how much does this change the object's kinetic energy?

A: Let the initial velocity of object = vLet the mass of object = m

Q: A 1000 Kg sports car accelerates from 0 to 30m/s in 10 s. What is the average power of the engine?

A: P=Ef-Eit=0.5mv2f-v2it

Q: Consider a swinging pendulum. When the pendulum is at either extreme of its motion, which of the…

A: According to the law of conservation of mechanical energy, the sum of the kinetic and gravitational…

Q: 2) A person with a mass of 70 kg runs up some stairs that are 25 m high in 12 seconds. How much…

A: The mass of the person is m=70 kg. The vertical displacement of the person is h=25 m. Time taken by…