Database issue fixed

Database issue fixed

On August 16, 2014, in Site News, by Mastering Physics Solutions

You may have noticed some recent downtime. This was due to a programming/database issue, which should now be fixed. So you should be able to access the site as before. Best of luck this semester!

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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: Problem 8.65

Mastering Physics Solutions: Problem 8.65

On March 10, 2014, in Chapter 07: Circular Motion and Gravitation, by Mastering Physics Solutions

Part A = 37 km

You are flying to New York. You’ve been reading the in-flight magazine, which has an article about the physics of flying …

What is the diameter of the airplane’s path around the airport?

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Mastering Physics Solutions: Momentum in an Explosion

Mastering Physics Solutions: Momentum in an Explosion

On March 1, 2014, in Chapter 06: Linear Momentum and Collisions, by Mastering Physics Solutions

Part A = 0
Part B = equal to
Part C = 500 kg·m/s

What is the momentum PA,i of piece A before the explosion?
During the explosion, is the force of piece A on piece B greater than, less than, or equal to the force of piece B on piece A?
The momentum of piece B is measured to be 500 kg·m/s after the explosion. Find the momentum PA,f of piece A after the explosion.

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Mastering Physics Solutions: Pushing a Lawnmower

Mastering Physics Solutions: Pushing a Lawnmower

On February 15, 2014, in Chapter 04: Force and Motion, by Mastering Physics Solutions

Part A = F = -(μ * w) / ((μ * sin(θ)) – cos(θ))
Part B = 1/μ

Find the magnitude, Fh, of the force required to slide the lawnmower over the ground at constant speed by pushing the handle.
Find an expression for tan(θcritical)

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