![itzandrea456](/avatars/8119.jpg)
itzandrea456
11.03.2020 •
Physics
A small block with mass 0.0350kg slides in a vertical circle of radius 0.525m on the inside of a circular track. During one of the revolutions of the block, when the block is at the bottom of its path, point A , the magnitude of the normal force exerted on the block by the track has magnitude 3.85N In this same revolution, when the block reaches the top of its path, point B , the magnitude of the normal force exerted on the block has magnitude 0.665N .
How much work was done on the block by friction during the motion of the block from pointA to point B?
Solved
Show answers
More tips
- H Horoscopes, Magic, Divination Is there a 13th Zodiac Sign?...
- H Health and Medicine Want to Lose Weight? Gain Muscle without Damaging Your Health!...
- F Family and Home Parquet or laminate, which is better?...
- L Leisure and Entertainment How to Properly Wind Fishing Line onto a Reel?...
- L Leisure and Entertainment How to Make a Paper Boat in Simple Steps...
- T Travel and tourism Maldives Adventures: What is the Best Season to Visit the Luxurious Beaches?...
- H Health and Medicine Kinesiology: What is it and How Does it Work?...
- O Other How to Choose the Best Answer to Your Question on The Grand Question ?...
- L Leisure and Entertainment History of International Women s Day: When Did the Celebration of March 8th Begin?...
- S Style and Beauty Intimate Haircut: The Reasons, Popularity, and Risks...
Answers on questions: Physics
- E English If the subject of a sentence is plural, the verb in the predicate must be...
- E English Imelda walks passed the same three street musicians on her way to school every morning. My question is it passed or past...
- S Social Studies Which of earth s layer is formed by volcanic activity? a. mantle b. outer layer c. crust d. inner layer...
- G Geography Humid continental climate regions are a. tropical b. more influenced by landmasses than winds and precipitation c. less influenced by landmasses d. located only...
- A Arts What risks do playwrights take when they create experimental drama? What risks might the audience take when they attend an experimental drama?...
Ответ:
w = -0.475N
Explanation:
To get Va and Vb
R = 0.525 m
m = 0.0350 kg
g = 9.8 m/s²
K.Ea = 0.5 * 0.035 * 7.25²
K.Ea = 0.92 J
Since point A is at the bottom of the path, h = 0 m
P.Ea = 0 m
For Vb
Ответ:
In state and local governments, environmental science and protection technicians inspect businesses and public places, and investigate complaints related to air quality, water quality, and food safety. They may be involved with the enforcement of environmental regulations
Explanation: