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Serhud [2]

3 years ago

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Physics

1 answer:

pogonyaev3 years ago

6 0

The formula is the volume of a *sphere* ... l hope it helped:)

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3. Electrons are the only part of an atom that can be transferred between materials. True or

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False

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The electrons cloud patterns are extremely complex and is of no importance to the discussion of electric charge in the atom. More important is the fact that electrons are labile; that is, they can be transferred from one atom to the next. It is through electronic transfer that atoms become charged.

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How does gravity keep the moon in orbit around earth

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Why do we say that Neptune was the first planet to be discovered through the use of mathematics?

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An object moves in a straight path. Its position x as a function of time t is presented by the equation x(t) = at – bt2+c, where

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The answer is below

Explanation:

Given that:

x(t) = at – bt2+c

a) x(t) = at – bt2+c

Substituting a = 1.4 m/s, b = 0.06 m/s2 and c =50 m gives:

x(t) = 1.4t - 0.06t² + 50

At t = 5, x(5) = 1.4(5) - 0.06(5)² + 50 = 55.5 m

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At t = 10, x(10) = 1.4(10) - 0.06(10)² + 50 = 58 m

At t = 0, x(0) = 1.4(0) - 0.06(0)² + 50 = 50 m

The average velocity (v) is given as:

$v=\frac{x(10)-x(0)}{10-0}\\ \\v=\frac{58-50}{10-0}=0.8\\ \\v=0.8\ m/s$

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The average velocity (v) is given as:

$v=\frac{x(15)-x(10)}{15-10}\\ \\v=\frac{57.5-58}{15-10}=0.1\\ \\v=0.1\ m/s$

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