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cricket20 [7]
3 years ago
12

Which statements accurately describe Dmitri Mendeleev’s contributions to the development of the periodic table? Check all that a

pply. Mendeleev wrote the first modern chemistry textbook. Mendeleev produced the first orderly arrangement of known elements. Mendeleev ordered the elements by increasing atomic number. Mendeleev used patterns to predict undiscovered elements. Mendeleev accounted for variations resulting from isotopes.
Physics
2 answers:
Sergio039 [100]3 years ago
8 0

For edgen its B and D

Levart [38]3 years ago
6 0
He produced the first orderly arrangement of known elements, he used patterns to predict undiscovered elements
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If the magnet is now pushed into the coil and then held stationary inside the coil describe fully what would you observe on the
alexira [117]

Answer:

E = q V B     describes the electric field induced

E Proportional to V B

while the magnet is pushed into the coil the induced field (B) will increase (consider 1 turn of the coil)

If V is constant the E-field will increase due to increasing B and the galvanometer will deflect accordingly

When V drops to zero the deflection must again be zero

So one would see a blip due to the deflection of the galvanometer

Note that as V increases the galvanometer will deflect one way and then as V drops to zero the deflection will be opposite (drop to zero when V is zero)

B always increases to a constant value because of the properties of the magnet.

8 0
3 years ago
A racing car can complete an 800 m long lap in 14 s. What is the speed of the<br> car?
nasty-shy [4]

Answer:

57.1 m/s

Explanation:

Speed = Distance/Time

Speed = 800/14

Speed = 57.1 m/s (3sf)

7 0
3 years ago
Convert 13.6g/cm3 into kg/m3​
Wewaii [24]

Answer:

0.000136kg/m3

Explanation:

13.6 / 1000 = 0.0136kg/cm3

0.0136 / 100 = 0.000136kg/m3

5 0
3 years ago
I'm just reviewing for my science semester exam and I got this wrong:
Afina-wow [57]
I think the answer is 2.
Hope this helps
4 0
4 years ago
what is the capacitance of two square parallel plates 6.7 cm on a side that are separated by 1.8 mm of paraffin? the dielectric
almond37 [142]

The capacitance of two square parallel plates will be 1.777 farads.

<h3>What is the capacitance of two parallel plates?</h3>

The body's capacity to hold electric charge is constrained by capacitance. There is a capacitance for each capacitor. Two metallic sheets of area A, spaced by d, make up the standard parallel-plate capacitor.

The parallel plate capacitor formula is given by:

C = ε Ad

Two square parallel plates 6.7 cm on a side are separated by 1.8 mm of paraffin. The dielectric constant of paraffin is 2.2. Then the capacitance of two square parallel plates will be given as,

C = ε Ad

C = 2.2 x 0.67 x 0.67 x 1.8

C = 1.777 farad

Two parallel square plates will have a capacitance of 1.777 farads.

More about the capacitance of two parallel plates link is given below.

brainly.com/question/12733413

#SPJ4

7 0
2 years ago
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