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

Author Question: A playground merry-go-round with a radius of 1.8 m and a rotational inertia of 120 kg m2 is ... (Read 121 times)

WhattoUnderstand

  • Hero Member
  • *****
  • Posts: 517
on: Jul 29, 2018
A playground merry-go-round with a radius of 1.8 m and a rotational inertia of 120 kg m2 is stationary.
 
  A child with a mass of 25 kg gets on and walks around the edge of the merry-go-round. How many revolutions around the merry-go-round must the child make in order for the merry-go-round to make one full revolution?
  A)
 
  2.5 revolutions
  B)
 
  1.5 revolutions
  C)
 
  3.0 revolutions
  D)
 
  1.0 revolutions
  E)
 
  2.0 revolutions

Question 2

Kepler's third law can be used to compare the Moon's orbit around the Earth to the orbit of the Earth around the Sun.
 
  Indicate whether the statement is true or false


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

lorealeza77

  • Sr. Member
  • ****
  • Posts: 356
Reply #1 on: Jul 29, 2018
Answer to Question 1

B

Answer to Question 2

FALSE


WhattoUnderstand

  • Member
  • Posts: 517
Reply 2 on: Jul 29, 2018
YES! Correct, THANKS for helping me on my review

jojobee318

  • Member
  • Posts: 298
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.

Did you know?

As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

Did you know?

The Food and Drug Administration has approved Risperdal, an adult antipsychotic drug, for the symptomatic treatment of irritability in children and adolescents with autism. The approval is the first for the use of a drug to treat behaviors associated with autism in children. These behaviors are included under the general heading of irritability and include aggression, deliberate self-injury, and temper tantrums.

Did you know?

The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

Did you know?

In inpatient settings, adverse drug events account for an estimated one in three of all hospital adverse events. They affect approximately 2 million hospital stays every year, and prolong hospital stays by between one and five days.

Relationship between fruit radius and beak length in populations of native and introduced species of Relationship between fruit radius and beak length in populations of native and introduced species of
Round and wrinkled phenotypes Round and wrinkled phenotypes
Evolution of the Sun's luminosity, radius and effective temperature compared to the present Sun Evolution of the Sun's luminosity, radius and effective temperature compared to the present Sun
Round-Lobed Hepatica Round-Lobed Hepatica
Ionic Radius Ionic Radius
Can you identify the banding patterns predicted by each model after the first round of ... Can you identify the banding patterns predicted by each model after the first round of ...
Video: Glomerular filtrate rate: pressures that affect GFR, NFP & GFR and blood composition

For a complete list of videos, visit our video library