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Naddik [55]
4 years ago
6

What does an element look like

Physics
1 answer:
Sphinxa [80]4 years ago
3 0
It can be fire ice water grass and stuff like that
You might be interested in
87) Determine the equivalent resistances for the following circuits.
stepladder [879]

Answer:

15    and  11 ohms

Explanation:

First one =   For the parallel resistors 1 / (1/6 + 1/6 + 1/6) =   1/ (3/6 ) = 6/3 = 2 ohms   then add the 3 and the 10  = 15 ohms

second one    for the parallel portion   equiv =    (10+2)*24 / ( (10+2 + 24) = 8

  then add the  3 in series = 11 ohms

8 0
2 years ago
A mountain climber ascends a mountain to its peak. The peak is 12,470 ft above sea level. The climber then descends 80 ft to mee
o-na [289]
The answer is 12,390 ft.

At first, a climber is at 12,470 <span>ft above sea level. But then, he goes down 80 ft to meet a fellow climber. So, this simply needs to be distracted:
12,470 ft - 80 ft = 12,390 ft
This is the elevation </span>above sea level at which he meet the other climber.
8 0
3 years ago
During which of the following activities may in inflatable personal flotation device to be used
Alla [95]
They may be used whenever you are not experienced with swimming and you are near the water such as swimming, canoeing, etc
5 0
4 years ago
Consider the force field and circle defined below. F(x, y) = x2 i + xy j x2 + y2 = 121 (a) Find the work done by the force field
kirza4 [7]

Answer: the work done by the force is 0

Explanation:

F (x², xy)

121 = 11²

so R = x² + y² = 11²

p = x². Q = xy

Δp/Δy = 0, ΔQ/Δx

using Green's theorem

woek = c_∫F.Δr = R_∫∫ ΔQ/Δx - Δp/Δy) ΔA

=  (x² + y² = 121)_∫∫ yΔA

now let x = rcosФ, y = rsinФ

ΔA = rΔrΔФ

so r from 0 to 11

and Ф from 0 to 2π

= 0_∫^2π   0_∫^11  rsinФ × rΔrΔФ

= 0_∫^2π SinФΔФ   0_∫^11  r²Δr

= [ -cosФ]^2π_0 [r³/3]₀¹¹ = ( -cos2π + cos0) (11³/3) = 0

therefore the work done by the force is 0

3 0
4 years ago
While working on her science fair project Venus connected a battery to a circuit that contained a light bulb. Venus decided to c
inessss [21]

Answer:

<em>Venus will need to use more voltage to have the same current</em>

Explanation:

<u>Ohm's Law</u>

It states that the current through a conductor is directly proportional to the voltage applied to it and inversely proportional to the resistance of the conductor. This relationship can be written as

\displaystyle I=\frac{V}{R}

Solving for V

V=IR

Venus originally connected a resistance R_1 to a voltage V_1 to get some current I

\displaystyle I=\frac{V_1}{R_1}

The voltage needed to get that current is

V_1=IR_1

If Venus changes the light bulb to another with higher resistance, say, R_2, then the current would change, unless she uses another voltage

V_2=IR_2

Since\ R_2>R_1,\ then\ V_2>V_1

Venus will need to use more voltage to have the same current

3 0
3 years ago
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