what is the total mechananical energy of falling baseball from the highest  of 4 m ,3.22 m and 2.25 m ? for more informal, weight of the baseball is 0.3 kg and the gravity is 10m/s2

Q: What happens to the kinetic energy if the bullet's mass is quadrupled while its velocity is halved?…

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Q: Calculate the kinetic energies of (a) a 2000.0-kg automobile moving at 100.0 km/h; (b) an 80.-kg…

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Q: If we know the total energy in a system is 140 J, and we know the Potential Energy is 100 J.  What…

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Q: 14. A 6.0-kg block is released from rest 80 m above the ground. When it has fallen 60 m its kinetic…

A: Given: mass of block, m = 6kg Initial height of block, H = 80 m height fallen, h' = 60 m

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A: The amount of water flowing is 7x106kg, and the height from which water is flowing is 50m.Write the…

Q: A 50.0-kg marathon runner runs up the stairs to the top of Chicago’s 443-m-tall Willis Tower.…

A: Given: m = 50.0 kg h = 443 m t =15.0 minutes = 15.0*60 sec = 900 sec

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A: The efficiency of automobile is 100 %. This means that the efficiency is 1.

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A: Given: The mass of the person is 70 kg. The height from the ground is 5 m. The time interval is 7 s.

Q: When I throw my keys straight up in the air and let them fall, why is there more Kinetic energy and…

A: According to conservation of energy  (Total energy )final  = (total energy ) initial

Q: A world-class sprinter running a 100 m dash was clocked at 5.4 m/s 1.0 s after starting running and…

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Q: Find the potential energy gained by a body of mass 60 kg, if it is raised by 12 m. (use g = 10 m/s2)…

A: Potential energy is defined as the product of mass, gravitational acceleration and height. PE = mgh

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: What is the total mechanical energy of falling baseball from the highest of 4m, 3.22m and 2.25m? For…

A: Here we have to apply conservation of mechanical energy Conservation of mechanical energy According…

Q: Mohan, having a mass of 40 kg, runs up a staircase of 50 steps in 10 s. If the height of each step…

A: Mass (m) = 40 kg Height of 1 step = 15 cm = 0.15 m Height of 50 steps (h) = 50 * 0.15  = 7.5 m Time…

Q: What average horsepower is developed by an 80 kg man while climbing in 10 seconds a flight of stairs…

A: The average power generated by a body can be defined as the energy the body uses or generates within…

Q: Calculate the work (in MJ) necessary to bring a 102 kg object to a height of 993 km above the…

A:

Q: A 1.5 Kg ball at initial altitude of 0.0 m is trough upward with an initial speed of 10.0 m/s What…

A: Given data:  Mass (m) = 1.5 kg Initial altitude (h) = 0.0 m Initial Speed (v) = 10.0 m/s Required:…

Q: In 1995, Karine Dubouchet of France reached a record speed in downhill skiing. If Dubouchet's mass…

A: The kinetic energy depends on the mass and speed of the object. The kinetic energy is directly…

Q: Janine is riding a bicycle. Over a period of 8.90 second, she increases her speed from 0 m/s to 7.57…

A: Given data:  Time (t) = 8.90 s Initial velocity (Vi) = 0 m/s Final velocity (Vf) = 7.57 m/s Mass (m)…

Q: Calculate the kinetic energies of (a) a 2000.0-kg automobile moving at 100.0 km/h; (b) an 80.-kg…

A: kinetic energy if mass m moving with speed v is given by  KE = 0.5 mv2  KE = kinetic energy  m is in…

Q: 11. A ball weighing 20 N is dropped from rest from a height of 8 meters above the ground. Assuming…

A: Total mechanical energy is the sum of kinetic energy and potential energy.

Q: Find the potential energy gained by a body of mass 50 kg, if it is raised by 10m. (use g = 10 m/s2)…

A: The potential energy is given by  U = m g h  where, m is the mass, g is the gravity and h is the…

Q: A 70 kg man runs up a long flight of stairs in 4 s. The vertical height of the stair is 4.5m.…

A: mass of man (m) = 70 kg time t = 4s height h =4.5 m

Q: A student lifts a weight of 10.0N a distance of 0.5 meters. If this exercise is repeated 50 times in…

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Q: What will be the power of a girl who can run with a velocity 4 m/s for 20 seconds. The mass of the…

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Q: A ball weighing 0.25 kg falls from a height of 3.20 m and bounces to a height of 2.40 m. What is…

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Q: A 99.2 kg object rises by 35.8 m.  How much potential energy (in joules) has this object gained?

A: Potential energy(P) is given by:- P=mgh Where, m=99.2kg g=9.81m/s^2 h=35.8m

Q: The famous cliff divers of Acapulco leap from a perch 35 m above the ocean. How fast are they moving…

A: Details Given: Height of cliff = 35m The velocity of cliff divers is calculated from the formula of…

Q: A 6.0-kg block is released from rest 80 m above the ground. When it has fallen 60 m its kinetic…

A: Given data:  Mass (m) = 6.0 kg Height fallen (Δh) = 60 m Required: The kinetic energy of the block

Q: What is your average power if you lift a 36.1 kg box at a constant speed to a height of 1.31 m in…

A: Calculate the work required for the to lift the mass. W = increase in potential energy of the mass…

Q: Calculate the valu of the time of flight of K-39 (K39) ion that has a kinetic energy of 12.2 x 10-18…

A: Answer               4.121*10-5 s

Q: An object of mass 10 kg is lifted through a height of 5 m. The increase in Potential Energy of the…

A:

Q: When a body is brought down from a height H1 to height H2, the Potential Energy of the body…

A: Potential energy is defined as energy possessed by a body due to its position in this surrounding.…

Q: A 1200-kg sports car is advertised to accelerate from 0-100 km/h (27.78 m/s) in 3.00 s. What is the…

A: Solution

Q: A stone is dropped from a height of 20 m. At what height is half of its energy potential and half…

A: 1st question solution:

Q: a mass of 0.1420 kg and has this speed just before a batter makes contact with it, how much kinetic…

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Q: Each second 1080 m of water passes over a waterfall 103 m high. Three-fourths of the kinetic energy…

A: Given:- Rate of water flow r=1080 m3/ s. Height of the waterfall is h=103 m. Mass of the water…

Q: A ball of 6 kg has velocity given by = ( 6 î - 3 j+ 2 K) m/s %3D What is the kinetic energy? Answer…

A: Given data The mass of the ball is m = 6 kg The velocity of the ball is v→=6 i^-3 j^+2 k^  m/s

Q: A 0.300 kg billiard ball is propelled from a table at a horizontal speed of 1.50 m/s. If the table…

A:

Q: A 6.0-kg block is released from rest 80m above the ground. When it has fallen 60 its kinetic energy…

A: Solution: as given that m =6 kg h = 80 m fallen height s =60 m

Q: Calculate the average power in kilowatts required to raise a 150-kg drum to a height of 20.0 m in a…

A: We have a drum of mass m=150 kg which is to be raised to a height of h=20 m in a time period t=1…

Q: If an elevated object has a gravitational potential energy of 100J and all of sudden falls down to…

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Q: Why doesn't the change in gravitational potential energy equal change in elastic potential energy?

A: The elastic potential energy is due to the stretch or compression in spring. Gravitational potential…

Q: The dome at Monticello is 13.6 m high. If a pebble with a mass of 15g is thrown horizontally from…

A: From the conservation of energy:

Q: Does the kinetic energy of a car change more when it goes from 10 to 20km/h or when it goes from…

A: Calculating the change in kinetic energy for the given velocity ranges:

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.