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Ket [755]
2 years ago
12

The resistance of a component can be found by measuring the potential difference across it and the __________ that travelled thr

ough it. What word completes the sentence?
Physics
1 answer:
elena-14-01-66 [18.8K]2 years ago
7 0

Answer:

polarity completes the sentence

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An object is initially moving at an unknown velocity. It accelerates at a rate of 2.0 m/s2 to a new velocity of 45 m/s in 10s. W
katrin2010 [14]

Answer:

Initial velocity=25m/s

Explanation:

acceleration(a)=2m/s^2

Final velocity(v)=45m/s

Time(t)=10seconds

Initial velocity(u)=?

V=u+axt

45=u+2x10

45=u+20

u=45-20

u=25m/s

6 0
3 years ago
A sphere of plastic of radius = .100 m is completely immersed in water. The density of the plastic is 600 kg/m3. Since the plast
tekilochka [14]

To solve this problem we need to use the proportional relationships between density, mass and volume, together with Newton's second law.

The force can be described as

F = ma \rightarrow mg

Where,

m = Mass

g = Gravitational acceleration

At the same time the Density can be defined as

\rho = \frac{m}{V} \rightarrow m = \rho V

Where,

m = mass

V = Volume

Replacing the value of the mass at the equation of Force we have,

F = \rho V g

Since the difference between the two forces gives us the total Force then we have to

F_T = F_w - F_p

Where

F_w = Force of the water

F_p= Force of plastic

Therefore with the values for this force we have,

F_T = \rho_w Vg - \rho_p Vg

F_T = Vg(\rho_w - \rho_p)

F_T = (\frac{4}{3} \pi r^3) g(\rho_w - \rho_p)

F_T = (\frac{4}{3} \pi (0.1)^3) (9.8)(1000 - 600)

F_T = 16.412 N

Therefore the tension in the thread is 16.412N

3 0
3 years ago
Why do temperatures differ between air, land, and water?
bagirrra123 [75]

Answer:the ocean water isn't moving into or through the atmosphere as a result of the sun's heating of the water, convection isn't the process influencing air and water temperature difference. The heat of the ocean is being given off radiated into the air, making the air substantially warmer

Explanation:

5 0
3 years ago
In Hooke’s law, what does k represent?
notsponge [240]
I believe the k value represents the D. Stiffness of the spring.
7 0
3 years ago
Read 2 more answers
The half-life of carbon-14 is 5,730. What fraction of carbon-14 would remain after 11, 460 years?
erastovalidia [21]

Answer:

1/4

Explanation:

1/2 of the carbon is left after 5730 years

1/2 of 1/2 is left after another 5730 years

3/4 is decayed

you are left with 1/4

5 0
3 years ago
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