 6.1: Give two examples of situations in which you might think youre doin...
 6.2: If the scalar product of two nonzero vectors is zero, what can you ...
 6.3: Must you do work to whirl a ball around on the end of a string? Exp...
 6.4: If you pick up a suitcase and put it down, how much total work have...
 6.5: You want to raise a piano a given height using a ramp. With a fixed...
 6.6: Does the gravitational force of the Sun do work on a planet in a ci...
 6.7: A pendulum bob swings back and forth on the end of a string, descri...
 6.8: Does your cars kinetic energy change if you drive at constant speed...
 6.9: A wattsecond is a unit of what quantity? Relate it to a more stand...
 6.10: A truck is moving northward at 55 mi/h. Later, its moving eastward ...
 6.11: A news article reports that a new solar farm will produce 143 kilow...
 6.12: Is it possible for you to do work on an object without changing the...
 6.13: How much work do you do as you exert a 75N force to push a shoppin...
 6.14: If the coefficient of kinetic friction is 0.21, how much work do yo...
 6.15: A crane lifts a 650kg beam vertically upward 23 m and then swings ...
 6.16: The worlds highest waterfall, the CherunMeru in Venezuela, has a t...
 6.17: A meteorite plunges to Earth, embedding itself 75 cm in the ground....
 6.18: An elevator of mass m rises a vertical distance h with upward accel...
 6.19: Show that the scalar product obeys the distributive law: A S # 1B S...
 6.20: Find the work done by a force F S = 1.8 ni + 2.2 nj N as it acts on...
 6.21: To push a stalled car, you apply a 470N force at 17 to the cars mo...
 6.22: Find the total work done by the force shown in Fig. 6.15 as the obj...
 6.23: How much work does it take to stretch a spring with k = 200 N/m (a)...
 6.24: Uncompressed, the spring for an automobile suspension is 45 cm long...
 6.25: You do 8.5 J of work to stretch a spring with k = 190 N/m, starting...
 6.26: Spider silk is a remarkable elastic material. A particular strand h...
 6.27: Whats the kinetic energy of a 2.4*105 @kg airplane cruising at 900 ...
 6.28: A cyclotron accelerates protons from rest to 21 Mm/s. How much work...
 6.29: At what speed must a 950kg subcompact car be moving to have the sa...
 6.30: A 60kg skateboarder comes over the top of a hill at 5.0 m/s and re...
 6.31: After a tornado, a 0.50g drinking straw was found embedded 4.5 cm ...
 6.32: From what height would you have to drop a car for its impact to be ...
 6.33: A typical human diet is 2000 calories per day, where the calorie de...
 6.34: A horse plows a 200mlong furrow in 5.0 min, exerting a 750N forc...
 6.35: A typical car battery stores about 1 kW# h of energy. Whats its pow...
 6.36: A sprinter completes a 100m dash in 10.6 s, doing 22.4 kJ of work....
 6.37: How much work can a 3.5hp lawnmower engine do in 1 h?
 6.38: A 75kg longjumper takes 3.1 s to reach a prejump speed of 10 m/s....
 6.39: Estimate your power output as you do deep knee bends at the rate of...
 6.40: In midday sunshine, solar energy strikes Earth at the rate of about...
 6.41: It takes about 20 kJ to melt an ice cube. A typical microwave oven ...
 6.42: Which consumes more energy, a 1.2kW hair dryer used for 10 min or ...
 6.43: You slide a box of books at constant speed up a 30 ramp, applying a...
 6.44: Two people push a stalled car at its front doors, each applying a 2...
 6.45: Youre at the gym, doing arm raises. With each rep, you lift a 20N ...
 6.46: A locomotive does 7.9*1011 J of work in pulling a 3.4*106 @kg train...
 6.47: You pull a box 23 m horizontally, using the rope shown in Fig. 6.17...
 6.48: (a) Find the scalar products ni # ni , nj # nj , and kn # kn . (b) ...
 6.49: (a) Find the scalar product of the vectors ani + bnj and bni  anj,...
 6.50: Looking to cut costs, the airline you work for asks you to investig...
 6.51: How much work does a force F S = 67ni + 23nj + 55k n N do as it act...
 6.52: A force F S acts in the xdirection, its magnitude given by F = ax ...
 6.53: A certain amount of work is required to stretch spring A a certain ...
 6.54: A force with magnitude F = a1x acts in the xdirection, where a = 9...
 6.55: The force exerted by a rubber band is given approximately by F = F0...
 6.56: You put your little sister (mass m) on a swing whose chains have le...
 6.57: Two unknown elementary particles pass through a detection chamber. ...
 6.58: A tractor tows a plane from its airport gate, doing 8.7 MJ of work....
 6.59: E. coli bacteria swim by means of flagella that rotate about 100 ti...
 6.60: On February 15, 2013, an asteroid moving at 19 km/s entered Earths ...
 6.61: An elevator ascends from the ground floor to the 10th floor, a heig...
 6.62: Youre asked to assess the reliability of a nuclear power plant, as ...
 6.63: A force pointing in the xdirection is given by F = F01x/x022 , whe...
 6.64: A force pointing in the xdirection is given by F = ax 3/2, where a...
 6.65: Two vectors have equal magnitude, and their scalar product is onet...
 6.66: At what rate can a halfhorsepower well pump deliver water to a tan...
 6.67: The rate at which the United States imports oil, expressed in terms...
 6.68: By measuring oxygen uptake, sports physiologists have found that lo...
 6.69: Youre writing performance specifications for a new car model. The 1...
 6.70: A 1400kg car ascends a mountain road at a steady 60 km/h, against ...
 6.71: You do 2.2 kJ of work pushing a 78kg trunk at constant speed 3.1 m...
 6.72: (a) Find the work done in lifting 1 L of blood (mass 1 kg) from the...
 6.73: (a) What power is needed to push a 95kg crate at 0.62 m/s along a ...
 6.74: You mix flour into bread dough, exerting a 45N force on the spoon,...
 6.75: A machine does work at a rate given by P = ct2, where c = 18 W/s2 a...
 6.76: A typical bumblebee has mass 0.25 mg. It beats its wings 100 times ...
 6.77: Youre trying to decide whether to buy an energyefficient 225W ref...
 6.78: Your friend does five reps with a barbell, on each rep lifting 45 k...
 6.79: A machine delivers power at a decreasing rate P = P0t 2 0 /1t + t02...
 6.80: A locomotive accelerates a freight train of total mass M from rest,...
 6.81: A force given by F = b/1x acts in the xdirection, where b is a con...
 6.82: Youre assisting a cardiologist in planning a stress test for a 75k...
 6.83: Youre an engineer for a company that makes bungeejump cords, and y...
 6.84: You push an object of mass m slowly, partway up a looptheloop tra...
 6.85: A particle moves from the origin to the point x = 3 m, y = 6 m alon...
 6.86: Repeat for the following cases: (a) the particle moves first along ...
 6.87: The worlds fastest elevator, in Taiwans Taipei 101 skyscraper (Fig....
 6.88: An experimental measurement of the force required to stretch a slin...
 6.89: Youre an expert witness in a medical malpractice lawsuit. A hospita...
 6.90: The energy in a batted baseball comes from the power delivered whil...
 6.91: The energy in a batted baseball comes from the power delivered whil...
 6.92: The energy in a batted baseball comes from the power delivered whil...
 6.93: The energy in a batted baseball comes from the power delivered whil...
Solutions for Chapter 6: Energy, Work, and Power
Full solutions for Essential University Physics  3rd Edition
ISBN: 9780134202709
Solutions for Chapter 6: Energy, Work, and Power
Get Full SolutionsSince 93 problems in chapter 6: Energy, Work, and Power have been answered, more than 22045 students have viewed full stepbystep solutions from this chapter. Chapter 6: Energy, Work, and Power includes 93 full stepbystep solutions. This expansive textbook survival guide covers the following chapters and their solutions. This textbook survival guide was created for the textbook: Essential University Physics, edition: 3. Essential University Physics was written by and is associated to the ISBN: 9780134202709.

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parallel

any symbol
average (indicated by a bar over a symbol—e.g., v¯ is average velocity)

°C
Celsius degree

°F
Fahrenheit degree