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Alla [95]
4 years ago
15

What is required foe electricity to flow

Physics
1 answer:
lukranit [14]4 years ago
5 0
Conductivity is required for the electric current to flow.
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Three dogs are fighting over a bone. One is pulling to the left with a force of 20N, another
Len [333]

Answer:

<em>Net force = 21.12 N</em>

<em>angle for the force α = 45°</em>

Explanation:

<em>In this problem, we will take the left as the negative x-axis, the right as the positive x-axis, and the upward direction as the positive y-axis.</em>

The 20 N force to the left has an x component of -20 N, and y component of 0 N

The 35 N force to the right has a x component of 35 N, and a y component of 0 N

The 15 N upwards has an x component of 0 N, and a y component of 15 N

We resolve the forces into the x and y components.

for the x component Fx

Fx = -20 + 35 + 0 = 15 N

For the y component Fy

Fy = 0 + 0 + 15 = 15 N

Net force Fn = \sqrt{Fx^{2} + Fy^{2}  }

Fn = \sqrt{(15)^{2} + (15^{2} ) }

<em>Net force Fn = 21.21 N</em>

for the angle,

tan\alpha = \frac{Fy}{Fx} = \frac{15}{15}

tan\alpha = 1

α = tan^{-1} 1

<em>angle for force α = 45°</em>

8 0
3 years ago
Kinetic energy of an object is quadrupled, momentum will change by what factor?
Jlenok [28]

Answer:

So as KE becomes 4times , Momentum will increase by 2 times.

8 0
3 years ago
Please help i need it to be answered by tomorrow may 1st i’m very frustrated
butalik [34]

Answer: At least one of his parents had brown eyes

Explanation: whoever had the brown eyes he got more genetics from them when it came to his eyes  

8 0
3 years ago
Is NaCH an element? Why or why not?
amm1812
<span>NaCH is not an element, it is a compound. An element can be found and identified on the periodic table to elements. A compound is a combination of two of more elements. NaCH is composed of three elements: Na (sodium), C (carbon) and H (hydrogen), making it a compound.</span>
3 0
3 years ago
Two waves are superposed. one wave has an amplitude of 5 cm, and other has an amplitude of 4 cm. What is the resultant amplitude
Vsevolod [243]
If both waves have the same wavelength, then the amplitude of
their sum could be anything between 1 cm and 9 cm, depending
on the phase angle between them.

If the waves have different wavelengths, then the resultant is a beat
with an amplitude of 9 cm.
4 0
3 years ago
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