« previous next »

Author Question: What is the result, expressed to the proper number of significant figures, of adding 23.4 to 91.237 ... (Read 119 times)

cabate

  • Hero Member
  • *****
  • Posts: 537
on: Jul 29, 2018
What is the result, expressed to the proper number of significant figures, of adding 23.4 to 91.237 and then subtracting 23.4?
 
  A) 91.237
  B) 91.2
  C) 91.3
  D) 91.0
  E) 91

Question 2

A scuba diver is 1.2 m beneath the surface of a still pond of water.
 
  At what angle relative to the normal at the surface must the diver shine a beam of light toward the surface in order for a person on a distant bank to be able to see it? The index of refraction for water is 1.33. A) 41
  B) 48
  C) 59
  D) 90
  E) 0
Physics ¦ Walker ¦ 5th Edition
Buy Test-Bank


akemokai

  • Sr. Member
  • ****
  • Posts: 347
Reply #1 on: Jul 29, 2018
Answer to Question 1

B

Answer to Question 2

B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

As many as 28% of hospitalized patients requiring mechanical ventilators to help them breathe (for more than 48 hours) will develop ventilator-associated pneumonia. Current therapy involves intravenous antibiotics, but new antibiotics that can be inhaled (and more directly treat the infection) are being developed.

Did you know?

It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

Did you know?

Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.

Did you know?

Individuals are never “cured” of addictions. Instead, they learn how to manage their disease to lead healthy, balanced lives.

Did you know?

All adverse reactions are commonly charted in red ink in the patient's record and usually are noted on the front of the chart. Failure to follow correct documentation procedures may result in malpractice lawsuits.

The frequency of competition according to the number of species involved. The frequency of competition according to the number of species involved.
A general scheme for adding one amino acid in solid-phase peptide synthesis A general scheme for adding one amino acid in solid-phase peptide synthesis
The Location and Number of Food- and Beverage-Processing Facilities The Location and Number of Food- and Beverage-Processing Facilities
Adding different Angular frequency w(t)? Adding different Angular frequency w(t)?
What will the pH be upon adding .01 moles of HI? What will the pH be upon adding .01 moles of HI?
Comparison number Grade 1 math Comparison number Grade 1 math
Video: Gastrin (gastric emptying) & Secretin (buffering gastric acid)

For a complete list of videos, visit our video library