Mastering Physics Solutions: Problem 6.73

Mastering Physics Solutions: Problem 6.73

On March 16, 2014, in Chapter 05: Work and Energy, by Mastering Physics Solutions

Part A = 3062 J

If the average book has a mass of 1.4 kg with a height of 22 cm, and an average shelf holds 29 books, how much work is required to fill all the shelves, assuming the books are all laying flat on the floor to start?

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Mastering Physics Solutions: Problem 6.37

Mastering Physics Solutions: Problem 6.37

On March 16, 2014, in Chapter 05: Work and Energy, by Mastering Physics Solutions

Part A = 8.075 m/s
Part B = 0.255 m

What is his speed as he lands on the trampoline, 2.2 m below his jump off point?
If the trampoline behaves like a spring with spring stiffness constant 7.1 * 10^4 N/m , how far does he depress it? Any depression of the trampoline from equilibrium is to be taken as a negative distance.

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Mastering Physics Solutions: Sliding in Socks

Mastering Physics Solutions: Sliding in Socks

On January 19, 2014, in Chapter 05: Work and Energy, by Mastering Physics Solutions

Part A = 1.84 m
Part B = 1.55 m

If your speed is 3.00 m/s when you start to slide, what distance will you slide before stopping?
If her mass is 20.0 kg, what distance d does she slide (i.e., how far does she move after the push ends)? Remember that the friction force is acting anytime that she is moving?

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Mastering Physics Solutions: Bungee Jumping

Mastering Physics Solutions: Bungee Jumping

On October 11, 2013, in Chapter 05: Work and Energy, by Mastering Physics Solutions

Part A = d = mg/k + L
Part B = k = 2mgh / (h – L)^2

How far below the bridge will Kate eventually be hanging, once she stops oscillating and comes finally to rest?
If Kate just touches the surface of the river on her first downward trip (i.e., before the firstbounce), what is the spring constant k?

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Mastering Physics Solutions: The Work Done in Pulling a Supertanker

Mastering Physics Solutions: The Work Done in Pulling a Supertanker

On October 5, 2013, in Chapter 05: Work and Energy, by Mastering Physics Solutions

Part A = 1.65 * 10^9 J

What is the total work done by the two tugboats on the supertanker?

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