A baseball is thrown straight up with initial speed v0. If air resistance cannot be ignored, when the ball returns to its initial height its speed is less than v0. Explain why, using energy concepts.

Q: A skier slides straight down an incline of 25 degrees without using her poles.  The slope itself is…

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Q: Promotional material for the 2020 C8 Chevrolet Corvette boasts a ''490 hp engine" and a "zero to 60…

A: Given data: Initial speed of the car, u=0 Final speed, v=60 mph = 26.82 m/s Mass of the car,…

Q: A roller coaster starts with a speed of 10.0 m/s at a point 45 m above the bottom of a dip. Neglect…

A: Let A to be the point which is 45 m above the bottom of the dip and B to be the point which is 30 m…

Q: 6. A 29.00-kg child initially at rest slides down a playground slide from a height of 2.50 m above…

A: As per our guidelines, we can answer only 1 question. please resubmit remaining questions.

Q: In the figure, a frictionless roller coaster car of mass m - 815 kg tops the first hill with speed…

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Q: A 10 kg sled with a kid inside is sliding down a hill on dry snow. At point A, it has a speed of v=…

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Q: Everyday, the heart uses enough energy to drive a truck 20 miles. In a lifetime, that is equivalent…

A: The average power of engine of a truck is about 150 Hp which is equal to 746×150= 111900 joule per…

Q: A dam collects water at a height of 300 m. The water can be let down through a pipe. As it falls to…

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Q: A rollercoaster cart of mass 400kg is moving at the top of the first hill (25m high) at a speed of…

A: Given data:  Mass (m) = 400 kg Initial height (hi) = 25 m Initial velocity (vi) = 3.3 m/s Final…

Q: A man lifts a pail of water of mass m= 3 kg upward at a constant speed of 2 m/s for 5 s. What is the…

A: Given that: Mass of the pail of water, m=3 kg Speed , v=2 m/s time taken, t= 5s

Q: 66. A helicopter, starting from rest, accelerates straight up from the roof of a hospital. The…

A: Given :  mass of helicopter "m"= 810 kg  Initial velocity "u"= 0 m/s (rest)  Final velocity "v"= 7…

Q: of the cart at each of the following po A: The bottom of the first hill B: The top of the second…

A: Conservation of Energy According to the law of conservation of energy, the total mechanical energy…

Q: In terms of saving energy, bicycling and walking are far more efficient means of transportation than…

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Q: 5. Water is pumped to a 43 m tall water reserve tower for a small municipality at a rate of 342.0…

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Q: A student drops a book from a window. It falls to the ground 5.27 m below. How fast is it going…

A: given, Height(hA ) = 5.27 m

Q: A 1400 kg car starts from rest and accelerates uniformly to 19.5 m/s in 20s. a)Find the average…

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Q: A 6860 kg car traveling at 41 m/s is at the foot of a hill that rises 491 m in 1.7 km. At the top of…

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Q: a. In a roller coaster the ride includes a vertical drop of 120 m. Suppose that the coaster has a…

A: As per guidelines, question a is answered. For the remaining question to be answered, post that…

Q: A meteorite has a speed of 95.0 m/sm/s when 850 kmkm above the Earth. It is falling vertically…

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Q: utral gear at 1

A: Given: Jeep's mass is 1000 Kg Velocity level and hill's height can be 14 m/s and 10m. To find the…

Q: A spring, with a spring constant k = 30,000 N/m, is compressed from a length of 15.0 cm to 10.0 cm,…

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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: An advertisement claims that a(n) 1600 kg car can accelerate from rest to 26 m/s in 8.4 s. Given:…

A: Given Mass of the car is given as m=1600 kg Initial speed of the car is vi=0 Final speed of the car…

Q: A rollercoaster with a mass of 3500 kg goes over its first hill with a speed of 15 m/s. The first…

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Q: A roller coaster starts with a speed of 5.7 m/s at a point 49 m above the bottom of a dip.…

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Q: A bowler tosses a ball without spin. The ball slides down the alley. At some point, friction with…

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Q: A 4000 kg roller coaster train full of riders approaches the loading dock at a speed of 12 m/s. It…

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Q: 4. An Olympic weightlifter snatches 100kg. In a snatch, the barbell is moved from a stationary…

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Q: Part of the route of a roller coaster is as follows:  Determine: The ETOTAL en A The  ETOTAL en B…

A: According to conservation law of energy, Total energy of roller coaster is remains constant at every…

Q: A 1200 kg car can accelerate from 30 m/s to 50 m/s in 10 s. Neglecting friction, and air resistance,…

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Q: Using energy considerations and assuming negligible air resistance, show that a rock thrown from a…

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Q: Consider a ball (0.50 kg) is tossed upward (from an initial elevation of 0.5m) and rises a vertical…

A: Given data:  Mass (m) = 0.50 kg Initial elevation (hi) = 0.5 m Vertical displacement from the…

Q: Same set-up for the conservation of energy was performed. The 5-g marble covered a horizontal…

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Q: Scenario: Some Marines are lowering a 170 kg sled loaded with ammunition down a hill, when the rope…

A: We have givenm=170 kgInitial speed (u)=1.9 m/sFinal speed (v)=0Height loss (h)=4.3 m

Q: A roller coaster starts with a speed of 4.1 m/s at a point 51 m above the bottom of a dip.…

A: Initial height is Initial speed is Final height is Find:Final speed or speed at the final height.

Q: 7. Using conservation of mechanical energy concepts, calculate the kinetic energy and velocity of a…

A: The conservation of energy states that 'if there is no external force acting on a system then the…

Q: Some racetracks use "compression barriers" some of the energy of the impact when a car racecar hits…

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Q: Patrick usually walks up three flights of stairs to his physics class without getting tired.…

A: Concept Power :- The rate of doing work or the rate of consumption of energy is called power.