![uverworldxdz4999](/avatars/45243.jpg)
uverworldxdz4999
29.11.2019 •
Physics
Suppose that she pushes on the sphere tangent to its surface with a steady force of f = 75 n and that the pressured water provides a frictionless support. how long will it take her to rotate the sphere one time, starting from rest?
Solved
Show answers
More tips
- S Style and Beauty How to Sew a Balloon Skirt: Detailed Tutorial and Tips on Choosing the Right Fabric...
- P Philosophy Agnosticism: Opinion or Belief?...
- S Style and Beauty How to choose the best mascara for your eyelashes...
- F Food and Cooking Discover Delicious Recipes You Can Make with Ground Meat...
- C Computers and Internet Google Search Tips and Tricks: Everything You Need to Know...
- S Science and Technology Why is there no gravity on other planets?...
- 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?...
Answers on questions: Physics
- P Physics What energy Transformation take place from the outlet charger to the ringing phone...
- P Physics Please HELP...Count the number of elements in the following molecule: 3 C2(H6K5)2...
- P Physics I need help on this page...
- P Physics Which element has a complete valence electron shell? a selenium (Se)b oxygen (O)c fluorine (F)d argon (Ar)WILL GIVE FIRST AWNSER...
- M Mathematics F(x) = 4x + 7, g(x) = 3x2 find (f + g)(x). (1 point)...
- H History Explain the persuasive message in each speech: what do henry and franklin want audiences to think and do answer...
- M Mathematics Look at the function f(x) = x3 - 4 x. which describes an interval in which the function is increasing?...
- H History How did the stamp act affect the colonists lives?...
- H History Eduardo had 16 more stamps than carson. 1/2 of carson s stamps were equal to 1/4 of eduardo s stamps. a.how many stamps did eduardo have? b.after eduardo gave away...
- H History How did the united states try to limit the number of immigrants coming into the country in the 1920 s?...
Ответ:
The time taken to rotate the sphere one time is, t = 22 s
Explanation:
Given data,
The mass of the sphere, m = 8200 kg
The radius of the sphere, r = 90 cm
= .9 m
The force applied by the girl, F = 75 N
The moment of inertia of the sphere is,
I = 2/5 mr²
= (2/5) 8200 x (.9)²
= 2657 kg·m²
The torque,
τ = I α
75 x 0.9 = 2657 x α
α = 0.0254 rad/s²
The angular displacement,
θ = ½αt²
2π = ½ x 0.0254 rad/s² x t²
t = 22 s
Hence, the time taken to rotate the sphere one time is, t = 22 s
Ответ:
Thank yo
Explanation: