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3 years ago

Please help will give brainiest if right to best answer:

Physics

1 answer:

gulaghasi [49]3 years ago

5 0

Answer:

My hypothesis about the planet's temperature would be that it is hot. the reason i say this is because Venus is the second planet from the sun so it should fairly hot. Also if the atmosphere is as thick as earth's then it should get hot fast around the planet as well.

Explanation:

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Four copper wires of equal length are connected in series. Thecross sectional areas are 1 cm2, 2 cm2, 3cm2, and 5 cm2. A voltage

vampirchik [111]

Answer:

Voltage across 2 cm² wire = 29.5 V

Explanation:

We equation for resistance,

$R=\frac{\rho L}{A}$

Where ρ is resistivity, L is length and A is area.

Here for the four wires ρ and L is same, only area is different.

So we have

$R_1:R_2:R_3:R_4=\frac{\rho L}{A_1}:\frac{\rho L}{A_2}:\frac{\rho L}{A_3}:\frac{\rho L}{A_3}\\\\R_1:R_2:R_3:R_4=\frac{1}{1}:\frac{1}{2}:\frac{1}{3}:\frac{1}{5}$

Here total voltage is given as 120 V,

In series connection voltage divides in the ratio of resistances

That is

$V_1:V_2:V_3:V_4=\frac{1}{1}:\frac{1}{2}:\frac{1}{3}:\frac{1}{5}$

$\frac{1}{1}\times x+\frac{1}{2}\times x+\frac{1}{3}\times x+\frac{1}{5}\times x=120Vx=59.02V$

Voltage across 2 cm² wire $=\frac{59.02}{2}=29.5V$

Voltage across 2 cm² wire = 29.5 V

3 0

3 years ago

How far something moves in a specific amount of time

Svetlanka [38]

Distance is how far something moves in a specific amount of time.

5 0

3 years ago

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How do I do number 8, plz respond quick, I have a big unit test on this and I’m rocking a 65 science average rn. Thank you for t

xxTIMURxx [149]

Answer:

3 is the correct answer for number 8

6 0

4 years ago

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If there was no gravity acting on the object and it was launched at an upwards angle of 30 degrees, explain its path.

matrenka [14]

C. Generally, gravity is the only force acting on a projectile (causing it to fall down towards the earth). If you took this away, it would have no forces acting on it and, according to Newton's 1st law of inertia, it would continue moving indefinitely

4 0

3 years ago

On a part-time job, you are asked to bring a cylindrical iron rod of density 7800 kg/m3 , length 81.7 cm and diameter 2.70 cm fr

Genrish500 [490]

Answer:

35.792 N

Explanation:

d = Diameter of rod = 2.7 cm

h = Length of rod = 81.7 cm

$\rho$ = Density of rod = 7800 kg/m³