What average mechanical power (in W) must a 60.0 kg mountain climber generate to climb to the summit of a hill of height 365 m in 49.0 min? Note: Due to inefficiencies in converting chemical energy to mechanical energy, the amount calculated here is only a fraction of the power that must be produced by the climber's body.

Q: Suppose a car travels 108 km at a speed of 30.0 m/s, and uses 2.0 gal of gasoline. Only 30% of the…

A: Given,

Q: Bonny Blair of the United States set a world record in speed skating when she skated 5.00 x 10^2 m…

A: Kinetic energy is defined as energy due to virtue of its motion. Kinetic energy =12mv2 GIVEN : Mass…

Q: You have your textbook and pen with you while working on this exam. Assume the height of your…

A: Given Data : The height of the desk is given as H = 1m. The mass of the book is given as mb. The…

Q: A 59.0 kg cheetah accelerates from rest to its top speed of 32.7 m/s   (a) How much net work (in…

A: a)Work done is equal to change in kinetic energy.

Q: 09: A person trying to lose weight by burning fat lifts a mass of 10 kg up to a height of 1 m 1000…

A: Given : Lifting mass = 10 kg Height = 1m Number of times = 1000 Energy supplied by fat per kg…

Q: A 1100 kg car drives up a hill that is 15.2 mm high. During the drive, two nonconservative forces do…

A:

Q: thermal energy due to friction

A:

Q: A person runs up a long flight of stairs in 10 seconds. If the person's weight is 600 N and the…

A: Given data Weight of the person W = 600 N time taken t = 10 s Power is defined as the work done per…

Q: A car of mass 1078 kg moves up a mountain road with the help of a nonconservative force that does…

A:

Q: A 5.0-kg box has an acceleration of 2.0 m/s2 when it is pulled by a horizontal force across a…

A: Given: Mass of the box = 5 Kg Acceleration of the box = 2 m/s2 Coefficient of the kinetic friction =…

Q: Gravity is given by g = 9.81 - 3.32 X 10-6 h m/s2, where h is the height above sea level. An…

A: The kinetic energy is given by K=12mv2 and the potential energy is given by P=mgh where h is the…

Q: Quick Start: A car accelerates from 0 to 43.2 m/s in 4.67 s. The mass of the car is 2.04e+03 kg. (a)…

A:

Q: Calculate the minimum average power that a 35-kg human boy must generate in climbing up the stairs…

A: Given: mass of the boy (M) = 35 Kg            height of the building (h) = 170 m            Time…

Q: A skier of mass 62 kg is pulled up a slope by a motor-driven cable. (a) How much work is required to…

A: mass of skier (m) = 62 kg distance pulled (d) = 50 m Angle of incline (θ) = 30oConstant speed (v) =…

Q: An archer stands on a cliff with his bow 32.5 meters above a valley and fires an arrow with a mass…

A: “Since you have posted a question with multiple sub parts, we will provide the solution only to the…

Q: e roof, descends another vertical 7.0-meter ladder, and returns to his starting location on the…

A: GivenMass of carpenter, m=75 kgHeight of ladder, h=7 mDistance travelled on roof, d=12 m

Q: A 61.0 kg cheetah accelerates from rest to its top speed of 32.5 m/s. HINT (a) How much net work (in…

A:

Q: Starting from rest, a 5.1-kg block slides 2.10 m down a rough 30.0° incline. The coefficient of…

A: Dear student as you have asked a question with multiple subparts, according to Bartleby policy we…

Q: Wé are creating comething called

A: Given: Mass of cat m=5kg Power P=196 watt.

Q: A skier of mass 78 kg is pulled up a slope by a motor-driven cable. (a) How much work is required to…

A:

Q: A shooting star is the trail of a meteor - a chunk of debris hurtling through Earth’s atmosphere. As…

A: Energy = (1/2)m(v)2 E = (1/2)(0.002)(100000 * 1609.4/3600)2 E = 1998586.7 Joules Work done =…

Q: A box is pulled with a force of 75 N to produce a displacement of 13 m. If the angle between the…

A: We are allowed to answer only the first question. For solutions to other questions, please re-post…

Q: A 1.00 x 10*3 kg elevator car carries a maximum load of 8.00 x 10*2 kg. A constant frictional force…

A:

Q: Starting from rest, a 1.7x10 kg flea springs straight upward. While the flea is pushing off from the…

A: Given that,  Mass of flea, m=1.7×10-4 kg The initial speed of flea, vi = 0 m/s Upward force, F=0.35…

Q: How much work must you do to push a 12 kg block of steel across a steel table at a steady speed of…

A: mass of block of steel (m) = 12 kg constant speed (v) = 1.3 mstime (t) = 7.7 seconds μk = 0.6

Q: A rock with a mass of 2.80 kg is moving with velocity (6.201 1.40ĵ) m/s. (HINT: v² = v.v.) (a) What…

A: mass of rock = 2.80 kg velocity vector = (6.20i^ - 1.40j^) m/s

Q: In order to test energy principles, I decide to do the following experiment with my son at the…

A:

Q: A 70 kg hiker climbed a mountain 1000 m high. Assuming the work was done at a steady rate during 3…

A:

Q: Suppose that in one year a country produces 2.77 × 10" kilowatt-hours (kWh) of electrical energy…

A:

Q: A typical human brain has a mass of 1.4 kg, which makes up about 2% of a person's mass. However, the…

A:

Q: You are out on a nice bike ride in the mountains. You and the bicycle together have a mass of 83 kg.…

A: Mass of cyclist and bike: m = 83 kg Power output: P = 400.0 W= 400 W Vertical height climbed: h =…

Q: (a) What is the average useful power output of a person who does 6 x 106 J of useful work in 7 hr?…

A: Given data:   Work (W) = 6×106 J Time (t) = 7 hr Required: Power (P)

Q: 50.0kg marathon runner runs up the stairs to the top of a 443m tall tower. To lift herself to the…

A:

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 bag of wheat weighs 50 kg. To what height should it be raised so that its potential energy may be…

A: Given that,Potential energy, P.E=9800 JouleMass, m=100 kgGravity, g=9.8 m/s2Potential energy, PE=mgh…

Q: A sledge loaded with bricks has a total mass of 18.6 kg and is pulled at constant speed by a rope…

A:

Q: A motorcyclist drives up a 3.1-meter tall ramp and leaves the ramp with a speed of 42.5 m/s. If…

A: Initial height (h) = 3.1 m Initial speed (u) = 42.5 m/s Final speed (v) = 37.8 m/s

Q: A skier of mass 61 kg is pulled up a slope by a motor-driven cable. (a) How much work is required to…

A: a) Calculate the height through which the mass will rise. Calculate the work to pull the mass.

Q: While training for breeding season, a 380 gram male squirrel does 32 pushups in a minute, displacing…

A: Given: m = 380 g = 0.38 kg  number of push ups, n = 32  height, h = 8.5 cm = 0.085  m

Q: A four-horse carriage is accelerating by 6 m/s every three (3) seconds, carrying a total load…

A:

Q: The unit of horsepower was defined by considering the power output of a typical horse. Working-horse…

A: Given: The mass of the horse is 1200 lb. The speed is 3.0 mph. The percentage of weight is 10%.

Q: A roller coaster car has a mass of 2,895 kg when loaded with people. The car is rolling down a steep…

A: Given:-  The Mass of the roller coaster is m = 2895 kg. The height of the coaster is h = 12.5 m and…

Q: A hummingbird hovers by exerting a downward force on the air equal, on average, to its weight. By…

A: