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
Yuri [45]
3 years ago
6

How did later discoveries change the model of Mendeleev's periodic table to what we accept today? A) Mendeleev's periodic table

was labelled as inaccurate and his founding principles were scrapped. B) Elements were arranged by atomic number and properties of the elements varied periodically with atomic number. C) While elements are arranged by atomic mass number, known families of elements are organized by electron number. D) Elements were arranged by the mass number of the nucleus and properties of the elements varied periodically with mass.
Physics
2 answers:
dolphi86 [110]3 years ago
7 0

Answer:

B

Explanation:

inessss [21]3 years ago
4 0
B because i got it wrong and it told me that was the answer.
You might be interested in
Please help AFAP........................
andriy [413]

Answer:

afap

Explanation:

4 0
3 years ago
Boyle's Law states that when a sample of gas is compressed at a constant temperature, the pressure P and volume V satisfy the eq
gayaneshka [121]

Answer:

The volume is decreasing at 160 cm³/min

Explanation:

Given;

Boyle's law,  PV = C

where;

P is pressure of the gas

V is volume of the gas

C is constant

Differentiate this equation using product rule:

V\frac{dp}{dt} +P\frac{dv}{dt} = \frac{d(C)}{dt}

Given;

\frac{dP}{dt} (increasing pressure rate of the gas) = 40 kPa/min

V (volume of the gas) =  600 cm³

P (pressure of the gas) = 150 kPa

Substitute in these values in the differential equation above and calculate the rate at which the volume is decreasing ( \frac{dv}{dt});

(600 x 40) + (150 x \frac{dv}{dt}) = 0

\frac{dv}{dt} = -\frac{(600*40)}{150} = -160 \ cm^3/min

Therefore, the volume is decreasing at 160 cm³/min

3 0
3 years ago
Which are the components of a typical refracting telescope? hints?
Ivenika [448]
<span>covex object and concave eyepiece.</span>
4 0
3 years ago
In a scientific experiment, the_
inysia [295]

C dependent variable because dependent means relying on something else
7 0
3 years ago
Read 2 more answers
A train travels due south at 20 m/s. It reverses its direction and travels due north at 20 m/s. What is the change in velocity o
luda_lava [24]

Answer:

40 m/s due north

Explanation:

Consider that the south direction a negative Y axis and north direction as  + Y axis

v1 = 20 m/s South = 20 (-j) m/s

v2 = 20 m/s North = 20 j m/s

Change in velocity = v2 - v1 = 20 j - 20 (-j) = 40 j m/s

So, change in velocity is 40 m/s due north.

5 0
3 years ago
Other questions:
  • An x ray has a wavelength of 5 nm what is its frequency
    5·1 answer
  • What is a Ramjet engine?
    6·1 answer
  • How do I solve this question
    10·1 answer
  • What is the time it takes a pig to roll a distance of 6 m at a speed of 8 m/s? 0.7 m/s
    11·1 answer
  • An object moving at a velocity of 32 m/s slows to a stop in 4 seconds. What was its acceleration
    10·1 answer
  • How are weather from ice and plants different from weathering from wind and water?
    12·1 answer
  • What happens to particles in a substance changes state
    7·2 answers
  • A cheetah has an acceleration rate of 5.80 m/s2 . What is the cheetah’s final velocity after 7.80 seconds, if initially, his vel
    11·1 answer
  • Effie no longer eats egg salad sandwiches—some time ago, she found herself vomiting after consuming a sandwich that probably had
    6·2 answers
  • A charged particle of mass 0.0050 kg is subjected to a 5.0 T magnetic field which acts at a right angle to its motion. If the pa
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!