This topic contains a solution. Click here to go to the answer

Author Question: Thousands of magnetic marbles are thrown into a vertically oriented wind tunnel. As they are thrown, ... (Read 615 times)

Pineapplelove6

  • Hero Member
  • *****
  • Posts: 560
Thousands of magnetic marbles are thrown into a vertically oriented wind tunnel. As they are thrown, no marbles are free from other marbles. Instead, they clump together in groups of varying numbers.
 
  The wind tunnel operator is able to control the upward force of the wind so as to make clumps of marbles hover. She records the various forces of wind required to maintain hovering clumps in units of ounces: 45, 30, 60, 75, 105, 35, 80, 55, 90, 20, 65. From this data, what might be the weight of a single magnetic marble? What is the force of the wind analogous to within Millikan's experiment? A) 3 ounces; the force of the wind is analogous to the force of gravity within Millikan's experiment.
  B) 3 ounces; the force of the wind is analogous to the strength of the electric field within Millikan's experiment.
  C) 5 ounces; the force of the wind is analogous to the force of gravity within Millikan's experiment.
  D) 5 ounces; the force of the wind is analogous to the strength of the electric field within Millikan's experiment.

Question 2

Can a person claim himself/herself to be a scientist if he/she no longer does experiments?
 
  A) No. Officially defined, a scientist is a person actively engaged in experimentation.
  B) No. Since experimentation is one of the four key components of the scientific process, any person no longer actively engaged in performing experiments cannot officially claim to be a scientist.
  C) Yes and No. A person may claim to be a scientist but the scientific community no longer officially recognizes him/her as such.
  D) Yes. A professional scientist is recognized for more activities than the performance of actual experiments.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

matt95

  • Sr. Member
  • ****
  • Posts: 317
Answer to Question 1

D

Answer to Question 2

D




Pineapplelove6

  • Member
  • Posts: 560
Reply 2 on: Aug 27, 2018
YES! Correct, THANKS for helping me on my review


ebonylittles

  • Member
  • Posts: 318
Reply 3 on: Yesterday
Gracias!

 

Did you know?

The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.

Did you know?

Elderly adults are living longer, and causes of death are shifting. At the same time, autopsy rates are at or near their lowest in history.

Did you know?

Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.

Did you know?

ACTH levels are normally highest in the early morning (between 6 and 8 A.M.) and lowest in the evening (between 6 and 11 P.M.). Therefore, a doctor who suspects abnormal levels looks for low ACTH in the morning and high ACTH in the evening.

Did you know?

The training of an anesthesiologist typically requires four years of college, 4 years of medical school, 1 year of internship, and 3 years of residency.

For a complete list of videos, visit our video library