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Alex Ar [27]
3 years ago
12

Speed is a scalar quantity that describes only the

Physics
1 answer:
Anna [14]3 years ago
4 0

Answer:

magnitude of the velocity

Explanation:

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Elements are arranged in the periodic table based on various patterns. For example, the element magnesium (Mg) A. has a higher a
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The right answer is A just did the question.


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3 years ago
On a balanced seesaw, a boy three times as heavy as his partner sits
slega [8]

Answer:

1/3 the distance from the fulcrum

Explanation:

On a balanced seesaw, the torques around the fulcrum calculated on one side and on another side must be equal. This means that:

W_1 d_1 = W_2 d_2

where

W1 is the weight of the boy

d1 is its distance from the fulcrum

W2 is the weight of his partner

d2 is the distance of the partner from the fulcrum

In this problem, we know that the boy is three times as heavy as his partner, so

W_1 = 3 W_2

If we substitute this into the equation, we find:

(3 W_2) d_1 = W_2 d_2

and by simplifying:

3 d_1 = d_2\\d_1 = \frac{1}{3}d_2

which means that the boy sits at 1/3 the distance from the fulcrum.

8 0
3 years ago
G a person of mass 100 kg is riding an elevator which was initially moving up with a velocity of 3 m/s. over a distance of 4 m t
andriy [413]
E=mc² where c is speed of the light
3 m/s more andmore less than speed of the light. So mass of the person still 100 kg
3 0
3 years ago
What does an atomic number represent in an atom?
Bezzdna [24]

The number of protons in an atom is known as the atomic number

6 0
3 years ago
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How to solve for the coefficient of friction
astraxan [27]
Their are two coefficients of friction, static and kinetic, regardless, they have basically the same formula:

u*N = F... aka
coefficient of friction*normal force = force of friction

Hope that helps!
3 0
3 years ago
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