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 99 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?

The types of cancer that alpha interferons are used to treat include hairy cell leukemia, melanoma, follicular non-Hodgkin's lymphoma, and AIDS-related Kaposi's sarcoma.

Did you know?

About 60% of newborn infants in the United States are jaundiced; that is, they look yellow. Kernicterus is a form of brain damage caused by excessive jaundice. When babies begin to be affected by excessive jaundice and begin to have brain damage, they become excessively lethargic.

Did you know?

As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.

Did you know?

The familiar sounds of your heart are made by the heart's valves as they open and close.

Did you know?

Anti-aging claims should not ever be believed. There is no supplement, medication, or any other substance that has been proven to slow or stop the aging process.

Results of selective breeding for oil content in corn plants. Results of selective breeding for oil content in corn plants.
World Population Growth, Past 10,000 years World Population Growth, Past 10,000 years
A passenger train crosses Stony Creek Bridge in the Rocky Mountains in 1878. Railroads were importan A passenger train crosses Stony Creek Bridge in the Rocky Mountains in 1878. Railroads were importan
Review Cognitive Changes over the Adult Years Review Cognitive Changes over the Adult Years
Plan of the Temple of Hera I, Poseidonia (Roman Paestum) Plan of the Temple of Hera I, Poseidonia (Roman Paestum)
Tracing numbers and alphabets by nat 3 years old Tracing numbers and alphabets by nat 3 years old
Video: Glomerubular filtrate rate -pressures that affect GFR and net filtration pressure

For a complete list of videos, visit our video library