# Lab report and questions | Physics homework help

This assignment is due by tomorrow night. I have attached a word document with all the specifications. Please read it over to make sure you have all the materials.

1. Explain the difference between linear speed and rotational speed. Include formula difference and how rotational speed is changed to linear speed.

1. A bicycle has wheels with a 30-centimeter radius. If smaller wheels with a 25-centimeter radius are installed, what is the change in linear speed of the bicycle if the wheels rotate at 1 revolution per second?

1. In terms of rotational inertia, explain why:

1. It’s hard to walk without bending your knees.

2. Short-legged people step more quickly than long-legged people do.

3. You can swing a baseball bat faster than a long one of the same weight.

1. Explain how skaters can quickly go from a slow to fast spin and vice versa.

2. What happens to their angular velocity and moment of inertia?

3. Is an external torque required? Explain.

1. What is a gyroscope and how is it used as a navigational aid?

1. To tighten a bolt, you push with a force of 80 Newtons at the end of a wrench handle that is 0.25 meters from the axis of the bolt.

1. What torque are you exerting?

2. If you move your hand inward to be only 0.10 meters from the bolt, what force do you have to exert to achieve the same torque?

3. Do your answers depend on the direction of your push relative to the direction of the wrench handle?

## Calculate the price of your order

550 words
We'll send you the first draft for approval by September 11, 2018 at 10:52 AM
Total price:
\$26
The price is based on these factors:
Number of pages
Urgency
Basic features
• Free title page and bibliography
• Unlimited revisions
• Plagiarism-free guarantee
• Money-back guarantee
On-demand options
• Writer’s samples
• Part-by-part delivery
• Overnight delivery
• Copies of used sources
Paper format
• 275 words per page
• 12 pt Arial/Times New Roman
• Double line spacing
• Any citation style (APA, MLA, Chicago/Turabian, Harvard)

# Our guarantees

Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.

### Money-back guarantee

You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.

### Zero-plagiarism guarantee

Each paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.

### Free-revision policy

Thanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.

Your email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.

### Fair-cooperation guarantee

By sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.

Order your essay today and save 10% with the coupon code: best10