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
Alinara [238K]
3 years ago
15

Please Hurry this is already overdue

Chemistry
1 answer:
Troyanec [42]3 years ago
7 0

Answer:

According to the chart, the period and string length are not the same. Regardless of string length. The chart says that "period = seconds 10"

Explanation:

So for example in Trial 1. The period equaled 8.7, so in turn you would times 8.7 by 10 and get 87. Which is not equal to the string length. For they are also measured in two different measurements.

You might be interested in
Which of the following animals exhibits bilateral symmetry?
GarryVolchara [31]
Option three, starfish is the correct answer since if you draw a line between it, it would be even!
5 0
3 years ago
Read 2 more answers
An unknown gas Q requires 2.67 times as long to effuse under the same conditions as the same amount of nitrogen gas. What is the
Misha Larkins [42]

Answer:

The correct answer is 199.66 grams per mole.

Explanation:

Based on law of effusion given by Graham, a gas rate of effusion is contrariwise proportionate to the square root of molecular mass, that is, rate of effusion of gas is inversely proportional to the square root of mass. Therefore,  

R1/R2 = √ M2/√ M1

Here rate is the rate of effusion of the gas expressed in terms of number of mole per uni time or volume, and M is the molecular mass of the gas.  

Rate Q/Rate N2 = √M of N2/ √M of Q

The molecular mass of N2 or nitrogen gas is 28 grams per mole and M of Q is molecular mass of Q and based on the question Q needs 2.67 times more to effuse in comparison to nitrogen gas, therefore, rate of Q = rate of N2/2.67

Now putting the values we get,  

rate of N2/2.67/rate of N2 = √28/ √M of Q

√M of Q = √ 28 × 2.67

M of Q = (√ 28 × 2.67)²

M of Q = 199.66 grams per mole

3 0
3 years ago
As the number of electrons added to the same principal energy level increases, atomic size generally
iVinArrow [24]

As the number of electrons added to the same principal energy level increases, atomic size generally

C. Decreases.

4 0
3 years ago
Read 2 more answers
In the periodic table we use today, the elements are arranged by increasing mass. True or false
guapka [62]

99% sure its false

its arranged by atomic number now i believe

5 0
3 years ago
Which option is a valid hypothesis in the correct format?
Rashid [163]

Answer:

4. If cotton plants need a consistent amount of water to grow steadily, then a cotton plant that displays steady growth will receieve 100 mL of water every day.

Explanation:

Hypotheses are written in the format of "If... then...". It should include information on both variables to arrive at a conclusion point.

5 0
2 years ago
Other questions:
  • A sample of argon has a volume of 1.2 L at STP. If the temperature is
    13·1 answer
  • In an exothermic reaction the bonding energy of the product is:
    6·2 answers
  • What physical process changed the geological area and composition of the Earth's oceans shown in the two pictures below
    14·2 answers
  • Yellowstone National Park has an average of about 4500 bison living in it. The park covers 3472 square miles. What is the popula
    12·2 answers
  • Calculate the solubility of CuX (Ksp=[Cu2+][X2−]=1.27×10−36) in a solution that is 0.200 M in NaCN.
    11·2 answers
  • Why does water work bad with oil? Explain
    7·2 answers
  • I need help is it A B or C second Trimester B First Trimester or C Third Trimester?
    15·1 answer
  • WILL GIVE BRAINLIEST ​
    13·1 answer
  • The pH of a saturated solution of a metal hydroxide MOH is 10.15. Calculate the Ksp for this compound.
    11·1 answer
  • Which term describes this reaction?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!