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ZanzabumX [31]
3 years ago
11

Please help and check all that apply and I will mark brainliest if it’s correct

Physics
1 answer:
Yuri [45]3 years ago
3 0
A syncline is visable
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Wow ;-; im not gonna even try
kari74 [83]

Answer:

ok

Explanation:

4 0
3 years ago
Read 2 more answers
G Railroad tracks are made from segments L = 79 m long at T = 20° C. When the tracks are laid, the engineers leave gaps of width
Andreyy89

Answer:

l=L\alpha(T_c-T)

Explanation:

L = Initial length of segment = 79 m

T = Normal temperature = 20^{\circ}\text{C}

l = Width to be left for expansion

\alpha = Coefficient of linear expansion of the material = 12\times 10^{-6}^{\circ}\text{C}^{-1}

T_c = Maximum temperature = 39.5^{\circ}\text{C}

\Delta T = Change in temperature = T_c-T

The expression of linear expansion is given by

l=L\alpha\DeltaT\\\Rightarrow l=L\alpha(T_c-T)

The expression for the minimum gap distance l the engineers must leave for a track rated at temperature T_c is l=L\alpha(T_c-T)

8 0
3 years ago
What can one say for sure about element #99, Einsteinium (Es))? a) There's no such element! b) It is an alkali metal. c) It is r
Dmitrij [34]

Answer:

Option (C)

Explanation:

Einsteinium is an element of the periodic table grouped in the Actinide series, with atomic number 99. They are dense element and highly electro-positive. <u>They are highly radioactive</u>, i.e the atoms within the element are unstable and constantly decay until they reach a stable environment. It has 99 number of electrons and protons, 153 number of neutrons.

Due to its high radioactivity, they are health hazardous and can used in making nuclear weapons but their uses are very limited and unknown.

Thus, the correct answer is option (C).

8 0
4 years ago
Can someone please help with this page
Allisa [31]
I have a strong hunch that if you read through pages 184 to 187 in the book,
you'll find each of these statements there, with no blank spaces.

1.  negative
2.  static
3.  electrons
4.  repel
5.  attract
6.  static
7.  electric current
8.  closed or complete
9.  open

3 0
4 years ago
During a game of tug-of-war, one team exerts a force of 3,500 N to the left. The other team exerts a force of 3,800 N to the rig
Lunna [17]
The answer is b hope this helps
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6 0
3 years ago
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