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 618 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
Great answer, keep it coming :)


chereeb

  • Member
  • Posts: 326
Reply 3 on: Yesterday
:D TYSM

 

Did you know?

Hypertension is a silent killer because it is deadly and has no significant early symptoms. The danger from hypertension is the extra load on the heart, which can lead to hypertensive heart disease and kidney damage. This occurs without any major symptoms until the high blood pressure becomes extreme. Regular blood pressure checks are an important method of catching hypertension before it can kill you.

Did you know?

Famous people who died from poisoning or drug overdose include, Adolf Hitler, Socrates, Juan Ponce de Leon, Marilyn Monroe, Judy Garland, and John Belushi.

Did you know?

It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.

Did you know?

Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.

Did you know?

Although not all of the following muscle groups are commonly used, intramuscular injections may be given into the abdominals, biceps, calves, deltoids, gluteals, laterals, pectorals, quadriceps, trapezoids, and triceps.

For a complete list of videos, visit our video library