A car with mass of 1108 kg accelerates from 0 m/s to 40.0 m/s in 10.0 s. Ignore air resistance. The engine has a 22.0% efficiency, which means that 22.0% of the energy released by the burning gasoline is converted into mechanical energy. What is the average mechanical power output of the engine? 81.44 OkW
Q: 1. A car starts at rest, and ends up with 1500 J of KE. How much Work was done on it?
A: As per our guidelines, we are supposed to answer only first one question in case of multiple…
Q: The work performed as a function of time for a certain process is given by: W = at³, where a = 2…
A:
Q: 1. For exercise, an athlete lifts a barbell that weighs 400 N from the ground to a height of 2.20 m…
A:
Q: 16. A diesel-powered crane (mc = 2.93 x 10° kg) is lifting a heavy block of concrete mb = 8.44 x 104…
A:
Q: This is a multi-part problem. Please answer all parts here. A 2 kg object is moving along the…
A:
Q: 6. A 0.150 kg baseball is moving 20.0 m/s. A bat hits it, doing 15.0 J of Work on it. What is the…
A: work energy theorem Wnet=change in kinetic energyWnet=∆KEWnet=KEfinal-KEinitialWnet=…
Q: The basis of muscle action is the power stroke of the myosin protein pulling on an actin filament.…
A: Input energy, Ein=5.1×10-20J Displacement, d=10nm=10×10-9m Force, F=1.0pN=1.0×10-12N
Q: 4. A runner has 250 J of KE. A short time later, he has 150 J of KE. How much Work was done on him?
A:
Q: A student is riding a bicycle at a constant speed of 4.29 m/s on a level road. The mass of the…
A: Data provided: Constant Speed (v) = 4.29 m/s Frictional and drag force (Fr) = 31.6 N Asked: The…
Q: A car with mass of 1087 kg accelerates from 0 m/s to 40.0 m/s in 10.0 s. Ignore air resistance. The…
A: Average mechanical power output of the engine is equal to the change in the kinetic energy of the…
Q: A 0.6 kg box moves up a ramp with some initial speed. It reaches a vertical height of 3.7 m before…
A:
Q: Determine the number of Calories required to power the heart for one day, given that 1 Calorie…
A:
Q: A 18,000 kg aircraft is lifted to a height of 12 m. How much potential energy does the aircraft…
A: Given that-Mass of the aircraft, m= 18000 kgHeight, h= 12 mPower,P= 15000 WattWe know that-Potential…
Q: A motorcycle at rest has 550 J of Work done on it. What is its final KE?
A: Given data: Initial velocity (v0) = 0 m/s Work done (W) = 550 J Required: Final kinetic Energy
Q: Dot. What is the scalar product ÷ Bifà = x₁ + yĵ and B = yî − xj? A. 2xy B. x² - y² o c. ryi-yry O…
A: Given data: Two vectors A = x i + y j and B = y i - x j Required: The scalar product of vector A…
Q: 59. a. Find the amount of work done in lifting a 50-lb weight upward 5 ft. b. If 200 N of force is…
A: a. the amount of work done is W=Fd=50 lb5 ft=250 lb-ft
Q: The electric motor of a model train accelerates the train from rest to 0.520 m/s in 30.0 ms. The…
A:
Q: The electric motor of a model train accelerates the train from rest to 0.560 m/s in 33.0 ms. The…
A: Given : Initial speed (vi) = 0 because train starts from rest Final speed (vf) = 0.560 m/s Time (t)…
Q: A model train powered by an electric motor accelerates from rest to 0.640 m/s in 22.0 ms. The total…
A: Given Information,Initial Velocity u=0Final Velocity v =0.64 m/stime(t) = 22 ms = 22×10-3…
Q: A radio-controlled car powered by an electric motor accelerates from rest to 0.600 m/s in 22.0 ms.…
A: Solution: Given Values, Initial Velocity (u) =0 m/s (since, it starts from rest)Final Velocity (v)…
Q: student is riding a bicycle at a constant speed of 4.19 m/s on a level road. The mass of the student…
A:
Q: 1. A pickup truck traveling with an Initial Kinetic Energy of 32000 J skids to a stop i) Determine…
A: Given Initial kinetic energy is KEi =32000 J Final kinetic energy is KEf =0 Find the work done.
Q: A model train powered by an electric motor accelerates from rest to 0.600 m/s in 26.0 ms. The total…
A: The initial velocity of the train v=0 m/s The final velocity of the train v=0.600 m/s The time taken…
Q: a. How much horsepower does a 25 W household lightbulb consume? (Express your answer using four…
A: Q. Given that Power consumed by lightbulb P = 25 W
Q: A block is at rest. A 40.0 N force directed 38.0° above horizontal pulls the block 8.00 m across…
A: Given data: Initial velocity (v0) = 0 m/s Force (F) = 40.0 N Angle (θ) = 38.0° Displacement (d) =…
Q: 10. A machine is used to move a 700 N object by 2.00 m by exerting 400 N of force through a distance…
A:
Q: The electric motor of a model train accelerates the train from rest to 0.680 m/s in 15.0 ms. The…
A: As per the given data, Mass of the motor (m) = 830 g = 830×10-3 kg; Initial velocity (u) = 0 (rest);…
Q: A 55 kg box is raised a distance of 2.0 m above a storeroom floor. What is the change of potential…
A:
Q: A 5.0 kg box moves up a ramp with some initial speed. It reaches a vertical height of 3.0 m before…
A:
Q: The Efficiency of a car engine is 25%. The total resistance to motion is 1000 N when the car is…
A: Efficiency = 25% force (F) = 1000 N energy output in 1 liter of petrol = 40 MJ
Q: Science laboratories and research facilities must use high efficiency computers that calculate and…
A: The total input energy of the supercomputer is Ei=49,690 J. The useful output energy of the…
Q: A pitching machine uses 122J of energy to throw a baseball with a mass of 0.145kg at a speed of 36.0…
A: Power is ratio of energy divided by time. P=Et Power is measured in watt.
Q: student
A: Data provided: Constant Speed (v) = 4.36 m/s Frictional and drag force (Fr) = 40.6 N Asked: The…
Q: 44. A metal ramp 6.00 m long is tilted 10.0° and is used to load and unload a moving van. Suppose a…
A: Solution-a) Calculating the height of the ramp:We know the length (L) of the ramp is 6.00 m and the…
Q: Under normal conditions the human heart converts about 12.7 J of chemical energy per second into…
A:
Q: A 61.5-kg hiker starts at an elevation of 1200 m and climbs to the top of a peak 2750 m high. ▼ Part…
A: The mass of the hiker is 61.5 kg.The initial height is 1200 m.The final height is 2750 m.
Q: The electric motor of a model train accelerates the train from rest to 0.660 m/s in 16.0 ms. The…
A: The expression form work-energy theorem,
Q: A 1500kg car is travelling with an initial velocity of 30.0 km/h while traveling through a school…
A: This question is based on Work Power and Energy topic. Power formula: Efficiency formula:
Q: A. A student whose mass is 51 kg climbed the stairs from the first floor to the third floor, 15…
A: Answer:- Given Mass of a student (m) = 51 kg Height of first floor to the third floor (h) = 15 m…
Q: 44. A metal ramp 6.00 m long is tilted 10.0° and is used to load and unload a moving van. Suppose a…
A:
Step by step
Solved in 3 steps with 4 images