Check Your Understanding You are rowing a boat parallel to the banks of a river. Your kinetic energy relative to the banks is less than kinetic energy relative to the water. Are you rowing with or against the current?

Q: Given the roller coaster track below, complete the table. Show complete solution. Assume that: g =…

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Q: Calculate the kinetic energy in Joule, of a car of mass 1500kg travelling at 90km/h.

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Q: A pump is required to lift 800 kg (about 200 gallons) of water per minute from a well 10 meters deep…

A: Power= (force× distance)/time P = mgh/t 1HP = 745.7 watt Potential energy = mgh Where, m = mass h =…

Q: With regards to the work done on the sled, indicate if the work is done by a conservative force (1)…

A: Before answering this problem it is must to understand the concept of conservative and non…

Q: A balloon filled with helium rises against gravity increasing its potential energy. The speed of the…

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Q: With the aid of necessary equations, explain total energy of a system.

A: We know that,the total enrgy of the system is sum of enrgies posse due to motion or due to the…

Q: energy supplied by such a diet each second, and hence the person's average power. (Give your answer…

A: The energy needed for the person per day, E=10 MJ We know that,  I day=24 h=24×60×60 s=86400 s The…

Q: According to the work-energy principle, the NET work on a system causes: an increase in the kinetic…

A: Work Energy theorem state that Total work done by conservative, non conservative and pseudo forces…

Q: A 10kg blokc slide down a hill that is 200m tall with an initial speed of 12m/s. What is the final…

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Q: The mass of a baseball is 1.452 lb. Determine its kinetic energy relative to home plate of a 93.87…

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Q: A 10kg blovkc slide down a hill that is 200m fall with an initial speed of 12m/s. a.) what is the…

A: Given: Mass of block, m=10 kg Height of hill, h=200 m Initial speed of block, u=12 m/s   To…

Q: Calculate the kinetic energy of a 10 g bullet travelling at a velocity of 2500 km/h.

A: Given data:  Mass (m) = 10 g = 0.010 kg Velocity (v) = 2500 km/h Required: The kinetic energy (KE)

Q: The mass of a baseball is 0.165 lb. Determine its kinetic energy relative to home plate of a 88.74…

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Q: object of mass 6 bie

A: Given: Mass of object is 6 kg Kinetic energy is 180 J Speed is 0.1m/s

Q: Compare the kinetic energy of a 50-kg athlete running at a speed of 3.0 m/sec with that of a 25-kg…

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Q: a nut of mass m slides on the smooth bar in the x direction whitout friction this rod is located…

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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

A: As requested I will do just Part- a Given that-Mass of automobile, m= 2000 kgSpeed of automobile,…

Q: A speak takraw ball with mass 8.4 kg was thrown with an initial upward velocity component of 6.7 m/s…

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Q: A skier (of mass 55 kg) skies down the smooth (friction less) ski slope illustrated in the…

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Q: (a) Which component of the horizontal axis wind turbine can be considered as the brain of the…

A: (a) The brain of a wind turbine is called the nacelle. A nacelle is a housing that contains all of…

Q: Comets orbit the Sun in highly elliptical orbits, and are mainly composed of frozen water and CO2.…

A: As per our guidlines we are supposed to answer only one question. kindly respond other questions as…

Q: Calcutate the Kinetic enery of a hody of 4K8 moring witha velocity of o.2 m/s? mass

A: Given Data: The mass of the body is: m=4 kg The velocity of the body is: v=0.2 m/s

Q: Wind is a useful source of energy for generating electrical power for people who live in heavily…

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Q: The mechanical power of a cyclist pedaling at a constant speed of 7.5 m / s is 152 W. d) what is…

A: Power  P = F.v  Since, F=v(dm/dt)  P = v2(dm/dt)

Q: Using a real world example that relates to environmental science find to places where potential…

A: Potential energy is the energy possessed by the body due to its position. As height from the ground…

Q: A 5-kg projectile is fired over level ground with a velocity of 200 m/s at an angle of 25°above the…

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Q: A flying at a speed of "v" bullet punctures wooden board, losing two thirds of its kinetic energy.…

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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: A car of mass 500kg moves along a straight level road. The engine of the car works at a constant…

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Q: The mas of a baseball is 1.495 lb. Determine its kinetic energy relative to home plate of 96.65 mile…

A: Given, mass of the baseball, m = 1.495 lb speed relative to home plate fastball, v = 96.65 mile per…

Q: A boat is angled 38 degrees to the direction of a stream moving at 12.3 m/s parallel to the steam…

A: The following diagram shows the situation given in the problem. Here vb=8 m/s is the original speed…

Q: A 44-kg pole vaulter running at 10 m/s vaults over the bar. Her speed when she is above the bar is…

A: We must use conservation of energy in this question.

Q: 2) If Mr. Miranda releases the ladders, he will fall a few meters before the cables attached to him…

A: In this problem, discuss the energy bar chart through the picture.

Q: For the figure shown below a ball is sliding on a wire. If the friction forces are negligible and…

A: A ball sliding on a wire, No friction. Velocity of ball at "A" , va = 250 cm/s = 2.5 m/s Velocity of…

Q: 46.3-g golf ball is driven from the tee with an initial speed of 44.8 m/s and rises to a height of…

A: Given  Initial velocity u  = 44.8 m/s Mass m = 46.3 g = 46.3 ×10-3 kg  Maximum height H = 20.5 m

Q: 48-kg pole vaulter running at 11 m/s vaults over the bar. Her speed when she is above the bar is 1.5…

A: Given Data: The mass of the pole vaulter is: m=48 kg The initial speed is: u=11 m/s The final speed…