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
sweet-ann [11.9K]
3 years ago
10

Which fact was most likely discovered between the time of Mendeleev’s table and the time of Moseley’s table that helped Moseley

develop his version?
Physics
1 answer:
igomit [66]3 years ago
7 0

Answer:

The number of protons in an atom is different than the atom's total mass.

Explanation:

Mendeleev had presented the first structured periodic table in 1869. But, in 1913, Henry Moseley developed the modern periodic table. The crucial difference between the two periodic tables is that Mendeleev's periodic table is generated on the basis of the atomic masses of chemical elements while the chemical element's atomic numbers were the main focus of Moseley's periodic table. There were just 56 chemical elements in Mendeleev's periodic table. On the other hand, 74 chemical elements are presented in Moseley's periodic table.

You might be interested in
I need help on this question!!
mr_godi [17]

Answer:

\boxed {\boxed {\sf 6000 \ Joules}}

Explanation:

Work is the product of force and distance.

W=F*d

The force is 500 Newtons and the couch is raised 12 meters above the ground.

Substitute these values into the formula.

W=500 \ N * 12 \ m

Multiply.

W=6000 \ N*m

  • 1 Newton meter is equal to 1 Joule.
  • So, our answer of 6000 N*m equals 6000 J

W= 6000 \ J

The work done to move a 500 Newton couch 12 meters is <u>6000 Joules</u>. Therefore, choice D is correct.

3 0
4 years ago
Read 2 more answers
Unit and dimension of luminous intensity​
DanielleElmas [232]

Answer:

unit - candela (cd)

Dimension - J

8 0
3 years ago
A 55-liter tank is full and contains 40kg of fuel. Find using Sl units: • Density p. • Specific Weight y • Specific Gravity Answ
Pavlova-9 [17]

Answer:

p = 727.273 kg/m3,  y = 7134.545 N/m^3, SG = 0.7273

Explanation:

Density is simply the amount of mass of a substance per unit of volume. It can be found by dividing the mass in kg by the volume im m^3:

p = \frac{m}{v}  = \frac{40kg}{55lt*\frac{1 m^3}{1000 lt}} = 727.273 kg/m^3

Specific weight is the weight of the substance per unit of volume. The weight is the mass of the material times the gravity, and it represents the force that the earth exerts on an object. Another way of calculate this value, its multiplying the density of the fuel times the gravity. Then:

y =  p*g = 727.273 kg/m^3 * 9.81 m/s^2 = 7134.545 N/m^3

Specific Gravity is the ratio of the density of the substance to the density of a reference substance. For liquids, the reference substance is water at 4°C, which has a density of about 1000 kg/m^3.

SG =\frac{ p_{fuel}}{p_{water}}  = \frac{727.273 kg/m^3}{1000 kg/m^3} = 0.7273

3 0
3 years ago
A neuron that is activated when a mosquito lands on your arm
mash [69]
<span> The spinal neurons involved in the tingling sensation caused by a light touch are different from those transmitting pain or a 'chemical' itch, the latter elicited by a mosquito bite or a skin wound that is healing.
hope this helps</span>
8 0
3 years ago
. The artificial sweetener NutraSweet is a chemical called aspartame (C14H18N2O5). What is (a) its molecular mass (in atomic mas
loris [4]

The molecular mass, in atomic mass unit, of aspartame would be 294 amu while the mass, in kg, of an aspartame molecule would be 0.294 kg

Aspartame has the chemical formula C14H18N2O5

C = 12, H = 1, N = 14, O = 16

(a) Molecular weight = (12x14) + (1x18) + (14x2) + (16x5)

                                  = 168 + 18 + 28 + 80

                                    = 294 amu

(b) Mass of 1 molecule of aspartame = mole x molar mass

                                    = 1 x 294

                                        = 294 g

Converting 294 g to kg = 294/1000

                                         = 0.294 kg

More on mole and molar mass can be found here: brainly.com/question/6613610

7 0
3 years ago
Other questions:
  • How does frame of reference affect how motion is described?
    12·1 answer
  • Cooling down after a workout allows the oxygen to continuing moving through the body and keeps the muscles from tightening up to
    6·2 answers
  • A person is drawing water from a well, pulling up a bucket that weighs 4.50 kg, at a constant speed. What is the force exerted o
    7·1 answer
  • What happens if the polar jet stream shifts to bring air from the north farther south
    15·1 answer
  • Only about 36% of the energy from petrol is used to move a car. What happens to the rest of it?
    11·1 answer
  • uppose that a car weighing 2000 pounds is supported by four shock absorbers Each shock absorber has a spring constant of 6250 lb
    15·1 answer
  • Which sentence avoids using a pronoun reference error?
    5·2 answers
  • 17. If a good is a luxury, what type of response will it cause?
    10·1 answer
  • Which term best matches the description of an earthquake?
    7·1 answer
  • The main reason that rods are more sensitive to light than cones is that
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!