1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Alex777 [14]
2 years ago
9

HELP QUICK!!!!!!!!!!

Chemistry
1 answer:
Semenov [28]2 years ago
8 0

Answer: 4 hours and 30 minutes

Explanation: because first wave was 1:30:00 and the second is 1:34:30

1:30:00 goes into 1:34:30 4 hours and 30 minutes.

You might be interested in
Francine makes several measurements of the mass of a metal block. The data set is shown in the table below.
BARSIC [14]

Answer:

Mean

Explanation:

The mean of a series of measurements is calculated when a<em>ll the measurements are added up and then divided by the number of measurements taken</em>, as follows:

  • Sum of Measurements = 20.73 + 20.76 + 20.68 + 20.75 = 82.92

As<u> there are 4 measurements</u>, the mean is:

  • Mean = 82.92 / 4 = 20.73
3 0
2 years ago
Hhhhhhhhhhheeeeeeelppppppp<br>will give brainliest
wlad13 [49]

Answer:

Kinetic energy.

Explanation:

7 0
2 years ago
Were would you be if all the stars you see are circumpolar
8_murik_8 [283]
At the Earth's North Pole, the north celestial pole is directly overhead, and all stars that are visible at all (that is, all stars in the northern celestial hemisphere) are circumpolar. As one travels south, the north celestial pole moves towards the northern horizon
3 0
3 years ago
The sulfur atom of sulfur dioxide is considered to be sp2-hybridized. The expected bond angle is 120°, but is actually slightly
Alja [10]

Answer: The bonds are intermediate between double and single bonds

Explanation:

A closer look at the diagram below shows that the bonds in sulphur IV oxide are intermediate between double and single bonds. Hence they do not have the exact bond angle of single bonds. This is why the bond angle is not exactly 120°. There are two resonance structures in the diagram that clearly show this point.

6 0
3 years ago
Select the options that are properties of electromagnetic waves:
kaheart [24]

Answer:

They propagate in materialistic media and non-materialistic media ( space ) .

They propagate in the space at constant velocity , which is 3 × 108 m/s .

They consist of vibrating electric and magnetic fields at certain frequency in phase with each other , perpendicular to each other and perpendicular to the direction of the wave propagation ...

Explanation:

welcome!

4 0
3 years ago
Other questions:
  • Which of the following elements would be classified as a nonmetal? sulfur aluminum silicon calcium
    12·2 answers
  • Ce cantitate de O se gaseste in 5,8 g hidroxid de magneziu
    15·1 answer
  • The mineral magnesite contains magnesium carbonate, MgCO3 (molar mass= 84 g/mol), and other impurities. When a 1.26-g sample of
    9·2 answers
  • Why is galvanized steel preferred for outdoor uses?
    7·1 answer
  • Steven had a sample of ethanol and wanted to see if it would boil at the temperature found in his textbook. His experiment yield
    6·1 answer
  • a sample of solid is decomposed and found to contain 6.52g of potassium, 4.34 g of chromium and 5.34 of oxygen, what is the empi
    10·1 answer
  • How many atoms are in 57.5 liters of xenon gas at STP
    10·1 answer
  • Please no links and round two decimal places
    15·1 answer
  • Which statement best describes how inflating a balloon is evidence of matter?
    10·1 answer
  • Which are examples of biotic factors? Select three options.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!