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Mazyrski [523]
4 years ago
9

What is electropositivity and electronegativity? Between group 1 and group 17, which is electropositive and electronegative?

Physics
1 answer:
marishachu [46]4 years ago
3 0
Electronegativity is a chemical property that describes the tendency of an atom or a functional group to attract electrons towards the nucleus. Electropositivity on the other hand is <span>a measure of an element's ability to donate electrons. Group 1 is a group of metals hence they are electropositive while group 17 is electronegative</span>
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How is wind direction indicated on a weather map ?
kotegsom [21]
It uses arrows to show what way the wind is going
6 0
3 years ago
Find the equilibrant of two 10.0-N forces acting upon a body when the angle between the forces is 90° Solve graphically using a
bazaltina [42]

The equilibrant force of the two given forces is 14.14 N.

<h3 /><h3 /><h3>What is equilibrant force?</h3>
  • This is a single force that balances other given forces.

The given parameters:

  • First force, F₁ = 10 N
  • Second force, F₂ = 10 N
  • Angle between the forces, θ = 90⁰

The equilibrant force of the two given forces is calculated as follows;

F = \sqrt{F_1 ^2 + F_2 ^2} \\\\F = \sqrt{(10)^2 + (10)^2} \\\\F = 14.14 \ N

Thus, the equilibrant force of the two given forces is 14.14 N.

Learn more about equilibrant force here: brainly.com/question/8045102

5 0
3 years ago
How do I answer number 4? Please help x
4vir4ik [10]

Explanation:

Efficiency is the ratio of energy out to energy in.

e = Eout / Ein

0.52 = 800 J / Ein

Ein ≈ 1538 J

Round as needed.

8 0
3 years ago
Suppose you throw a cube-shaped object and a spherical-shaped object of equal volume in the same volume of water. The ball sinks
sergeinik [125]
The objects have different densities
They objects may possess the same volume; however, due to a difference in density, they do not possess the same mass within that volume. This means that they experience a different gravitational force, which causes one to sink and the other to float.
3 0
3 years ago
Consider a pipe of length L that is open at both ends. What are the wavelengths of the three lowest-pitch tones produced by this
lina2011 [118]

Answer:

2 L, L, 2 L/3

Explanation:

For a pipe of length l open at both ends, the length of the pipe is given by :

l=\dfrac{n\lambda}{2}

or

\lambda=\dfrac{2l}{n}

For first pitch tone, n = 1

\lambda_1=2l

For first pitch tone, n = 2

\lambda_2=\dfrac{2l}{2}

\lambda_2=l

For first pitch tone, n = 3

\lambda_3=\dfrac{2l}{3}

\lambda_3=\dfrac{2l}{3}

So, the wavelengths of the three lowest-pitch tones produced by this pipe are 2 L, L, 2 L/3 respectively. Hence, the correct option is (d)

8 0
3 years ago
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