kinetic energy in joules

Q: Mark throws a ball upward. His hands moved by 0.21 m and the ball moves upward. Determine the…

A: Given data:  Height (h) = 0.21 m Work (W) = 31.08 J Required: The magnitude of the force (F)

Q: Sandy and Chris stand on the edge of a cliff and throw identical mass rocks at the same speed. Sandy…

A: It is given that Sandy and Chris stand on the edge of a cliff and throw identical mass rocks at the…

Q: Problem A moving electron has a Kinetic Energy K1. After a net amount of work is done on it, the…

A: The kinetic energy = 1/2 mv2 Work = KEf - KEi

Q: kinetic energy of the ball

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Q: A roller coaster car starts from rest at the top of a large hill as shown below. Where does the car…

A: Given data:  Initial velocity of Roller coaster (v0) = 0 m/s Start from top of the hill

Q: Problem A moving electron has a Kinetic Energy Kg. After a net amount of work is done on it, the…

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Q: Problem A moving electron has a Kinetic Energy K1. After a net amount of work is done on it, the…

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Q: Question #: 22 A bead of mass m = 50 g is moving on the track shown in the figure. What is the…

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Q: "20 kg bear slides, from rest, 6 m down a Lodgepole Pine tree, moving with a speed of 5.6 m/s just…

A: Given Data: The mass of the bear is: m=20 kg The height slide down by the bear is: h=6 m The speed…

Q: A0.20 kg ball was thrown vertically upward from a 20-m high building with a speed of 10 m/s. On its…

A: The ball’s mass is, The height of the building is, The ball’s initial speed is, The height above…

Q: A cart (m=14 kg) slides along a level track with a velocity of 5 m/s. It then collides and sticks to…

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Q: A 4.0-kg battery-operated toy has a speed of 7.5 m/s at point C and kinetic energy of 205 J at point…

A: concept used:

Q: "25 kg bear slides, from rest, 10 m down a Lodgepole Pine tree, moving with a speed of 5.6 m/s just…

A: change in potential energy = final potential energy-initial potential energy  Here final potential…

Q: 0.31-kg particle has a speed of 5.0 m/s at point A and kinetic energy of 7.8 J at point B. (a) What…

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Q: (Figure 1) is the potential-energy diagram for a 500 g particle that is released from rest at A.…

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Q: I performed a lab using a toy car to go down a ramp that was positioned at different heights. For…

A: Given data: The mass of the car is m=0.56 kg The height of the ramp is d=0.4 m Write the…

Q: Bicyclists in the Tour de France do enormous amounts of work during a race. For example, the average…

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Q: KE-1 a) A 1,500kg car is traveling at 30.0m/s. How many joules of kinetic energy does the car have?…

A: kinetic energy of object is given as   K.e = 1/2 mv2 here m = mass of object  v = velocity of…

Q: 1) Calculate the total mass (kg) of a person climbing a hill 200 meters high if the work done is…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: You carry a 21.0 kg bag of groceries 2.0 m above the level floor at a constant velocity of 71 cm/s…

A: No work is done i.e. work done is 0.

Q: 25 kg bear slides, from rest, 12 m down a Lodgepole Pine tree, moving with a speed of 5.6 m/s just…

A: We take the initial gravitational potential energy to be Ui= 0. Then the final gravitational…

Q: 60g ball is shot from the top of a cliff at a speed of 20.0 m/s. this ball lands on the ground below…

A: Given Data: The mass of the ball is: m=60 g The initial speed by which ball shot from the cliff is:…

Q: Problem#1:A 11-g bullet has a speed of 26 km/s. a) What is its kinetic energy in joules?

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Q: Problem A moving electron has a Kinetic Energy K1. After a net amount of work is done on it, the…

A: Let the mass of electron = m Initial kinetic energy (K1) = (1/2)(m)(v21)Final velocity = one quarter…

Q: The ¨00¨Nascar driven by michael Mc Dowell is speeding with 180 milesper hour,which is 80.5m/sand…

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Q: "20 kg bear slides, from rest, 6 m down a Lodgepole Pine tree, moving with a speed of 5.6 m/s just…

A: The mass of bear. m=20 kg   Gravitational acceleration  g=9.8 m/s²   Height  h=6 m The potential…

Q: A 0.200-kg particle has a speed of 2.30 m/s at point O and kinetic energy of 7.10 J at point B. (a)…

A: Mass of the particle m=0.200 kg The speed of the particle at point A ,vA=2.30 m/s  The kinetic…

Q: 4) A roller coaster of mass 80.0 kg is moving with a speed of 20.0 m/s at position A as shown in the…

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Q: For its size, the commonflea is one of the most accomplished jumpers in the animal world.A…

A: Given The height cover by the flea is h=20 cm=20×10-2 m. The mass of flea is m=0.50 mg. By the…

Q: A spring-loaded toy gun is used to launch a 10 g plastic ball.  The spring, which has a spring…

A: Given data:  Mass (m) = 10 g = 0.010 kg Spring constant (k) = 10 N/m Comparison in spring (x) = 10…

Q: A 0.500-kg particle has a speed of 1.30 m/s at point A and kinetic energy of 7.00 J at point B.…

A: mass of particle (m) = 0.5 kg speed of particle at A (u) = 1.30 m/s kinetic energy of particle at…

Q: What is kinetic energy (KE)? What is potential energy (PE)? Discuss their similarities and…

A: Kinetic energy is a category of energy used under the context of dynamics of motion. The energy…

Q: Problem A moving electron has a Kinetic Energy K1. After a net amount of work is done on it, the…

A: Answer: W= (15/16)K1

Q: ana's father climbs the stairs in their house and increases his potential energy by 2000 j when he…

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Q: A 3.2 kg ball that is moving straight upward has 17 J of kinetic energy and its total mechanical…

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: 1. Calculate the potential energy, kinetic energy, mechanical energy, velocity, and height of the…

A: Mass (m) = 60 kg Velocity (v) = 8 m/s

Q: "20 kg bear slides, from rest, 8 m down a Lodgepole Pine tree, moving with a speed of 5.6 m/s just…

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Q: The skateboarder shown below has a potential energy of 2,800 J at a height of 4 meters. Assuming…

A: According to law of conservation of energy  TEi = PE TEf= PE - fw PE = potential energy fw= Work by…

Q: B Datum A ball with a mass of 5 Kg is released from rest at point O, determine the kinetic energy of…

A: Given, mass of ball m = 5 kg r = 1.60 m θ1=15∘θ2=45∘ Now, initial energy of the ball at point O…

Q: Jeff lifts a 6000-g metal ball from the ground to a height of 35 inches close to his body. What is…

A: Given: mass of ball m = 6000 g = 6 kg height h = 35 inch = 35*0.0254 m = 0.889 m

Q: Three objects with masses m, = 4.8 kg, m, - 14 kg, and m, = 17 kg, respectively, are attached by…

A: Given that the mass of three objects(m1,m2,m3) and friction force and height. Then We have to…

Q: A 1000 kg car moving at 15 km/hr strikes a stopped 500 kg car and the two lock bumpers. Calculate…

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Q: How much energy is gained by a box of mass 20 kg when a man (a) carrying the box waits for 5 minutes…

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