This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A catapult is tested by Roman legionnaires. They tabulate the results in a papyrus and 2000 years ... (Read 60 times)

rachel9

  • Sr. Member
  • ****
  • Posts: 495
on: Jul 29, 2018
A catapult is tested by Roman legionnaires. They tabulate the results in a papyrus and 2000 years later the archaeological team reads (distances translated into modern units): Range = 0.20 km; angle of launch = /4; landing height = launch height.
 
  What is the initial velocity of launch of the boulders if air resistance is negligible? A) 44 m/s
  B) 1.4 m/s
  C) 22 m/s
  D) 0.69 m/s

Question 2

A 2.0 F capacitor is charged to 12. V and then discharged through 4  106 . How long will it take for the voltage across the capacitor to drop to 3.0 V?
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

snackralk

  • Sr. Member
  • ****
  • Posts: 363
Reply #1 on: Jul 29, 2018
Answer to Question 1

A

Answer to Question 2

11.1 s


rachel9

  • Sr. Member
  • ****
  • Posts: 495
Reply #2 on: Jul 29, 2018
Both answers were spot on, thank you once again


snackralk

  • Sr. Member
  • ****
  • Posts: 363
Reply #3 on: Jul 29, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

All adverse reactions are commonly charted in red ink in the patient's record and usually are noted on the front of the chart. Failure to follow correct documentation procedures may result in malpractice lawsuits.

Did you know?

After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.

Did you know?

As many as 28% of hospitalized patients requiring mechanical ventilators to help them breathe (for more than 48 hours) will develop ventilator-associated pneumonia. Current therapy involves intravenous antibiotics, but new antibiotics that can be inhaled (and more directly treat the infection) are being developed.

Did you know?

The top five reasons that children stay home from school are as follows: colds, stomach flu (gastroenteritis), ear infection (otitis media), pink eye (conjunctivitis), and sore throat.

Did you know?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

Acromegaly. Acromegaly is a metabolic disorder in which excessive amounts of growth hormone are secr Acromegaly. Acromegaly is a metabolic disorder in which excessive amounts of growth hormone are secr
The Long Valley Caldera Erupted the Bishop Ash 760,000 Years Ago The Long Valley Caldera Erupted the Bishop Ash 760,000 Years Ago
Results of the study by Laruelle et al. (1996) Results of the study by Laruelle et al. (1996)
Major Areas Tested on the CMA and RMA Examinations Major Areas Tested on the CMA and RMA Examinations
Top Prescriptions for Children Under 17 Years of Age (2002–2010) Top Prescriptions for Children Under 17 Years of Age (2002–2010)
Mount Pinatubo caused ~1˚C cooling for up to 5 years Mount Pinatubo caused ~1˚C cooling for up to 5 years
Video: Digestion Animation

For a complete list of videos, visit our video library