Author Question: A heat pump will have an efficiency (heat out to electrical in) of about ________. a. 35 b. 50 c. ... (Read 19 times)

CQXA

  • Hero Member
  • *****
  • Posts: 546
A heat pump will have an efficiency (heat out to electrical in) of about ________.
 a. 35 b. 50 c. 75 d. 100 e. 200

Question 2

A track star in the broad jump goes into the jump at 12 m/s and launches himself at 20 above the horizontal. How long is he in the air before returning to Earth?



tandmlomax84

  • Sr. Member
  • ****
  • Posts: 323
Answer to Question 1

e

Answer to Question 2

0.84 s



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

The cure for trichomoniasis is easy as long as the patient does not drink alcoholic beverages for 24 hours. Just a single dose of medication is needed to rid the body of the disease. However, without proper precautions, an individual may contract the disease repeatedly. In fact, most people develop trichomoniasis again within three months of their last treatment.

Did you know?

Less than one of every three adults with high LDL cholesterol has the condition under control. Only 48.1% with the condition are being treated for it.

Did you know?

The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.

Did you know?

Human kidneys will clean about 1 million gallons of blood in an average lifetime.

Did you know?

Always store hazardous household chemicals in their original containers out of reach of children. These include bleach, paint, strippers and products containing turpentine, garden chemicals, oven cleaners, fondue fuels, nail polish, and nail polish remover.

For a complete list of videos, visit our video library