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maxonik [38]
3 years ago
13

Mention two advantage of writing very big and small numbers in tge power of ten.​

Physics
1 answer:
Elenna [48]3 years ago
7 0
Easier to write, easier to read, easier to understand, easier to compare
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A metal conduit will be used as a pathway for wiring through a concrete block. The conduit is a 4 foot long rod with an outer di
AlekseyPX

Answer:510. 12 cm^3

The volume of a cylindrical conduit, V=\pi (r_2^2-r_1^2) h

where r_1 is the inner radius, r_2 is the outer radius, h is the length.

First of all, we would covert each parameter into centimeters.

length of the conduit, h=4 ft=4\times 30.48 cm=121.92 cm

outer radius, r_1=2.2/2 in =1.1 in= 1.1\times 2.54 cm=2.79 cm

inner radius, r_1=2/2 in =1 in= 2.54 cm

Insert the values in the volume formula,

V=3.14 \times (2.79^2-2.54^2) \times 121.92 cm^3=510. 12 cm^3

Hence, the volume of metal in the conduit is 510. 12 cubic centimeters.

7 0
3 years ago
Read 2 more answers
Why do plants need to obtain carbon atoms?
Firdavs [7]

Answer:

A) Plants use carbon to build glucose during photosynthesis.

Explanation:

Plants produce their food by the process of photosynthesis.

hope this helps :}

5 0
3 years ago
Which of these characteristics did all of the five waves of immigrants have in common A. They all had the same political beliefs
timofeeve [1]
I am pretty sure it is c
8 0
3 years ago
Coulomb's law is expressed mathematically as
nataly862011 [7]
Force between two charges  = 

     ( 1/4πε₀ ) · (Charge #1) · (Charge #2) / (Distance between them)²

  in the direction away from each other.

In other words, if the force is positive, the charges are repelling.
If the force is negative, the charges are attracting.
4 0
3 years ago
A paper-filled capacitor is charged to a potential difference of V0=2.5 V. The dielectric constant of paper is k=3.7 . The capac
Pavlova-9 [17]

Answer:

k =  6.72

Explanation:

K of paper = 3.7

k of air = 1

Given that charge Q on the capacitor is constant because cell is disconnected from the circuit. So

V = Q / C = 2.5

Capacity becomes C / 3.7 in air .

capacity becomes C/3.7 when paper is replaced by air .

V₁ = Q / (C/3.7)

= 3.7 Q/C

3.7 x 2.5

= 9.25 V

In the second case ,

capacitance  due to new unknown dielectric k

= C/3.7 x k

= kC / 3.7 ( Capacitance in air is C/3.7 )

V ( new ) = Q / ( kC/3.7 )

= 3.7 Q/kC

.55 x 2.5 = 3.7 x( 2.5 / k )

k = 3.7 / .55

= 6.72

7 0
2 years ago
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