3 years ago

bond formed when atoms share one or more pairs of electrons, but atoms do not always share electrons equally

Physics

1 answer:

marysya [2.9K]3 years ago

5 0

Answer:

Polar covalent bond or just covalent bond

Explanation:

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A rocket sled accelerates from 10 m/s to 40 m/s in 2 seconds. What is the average acceleration of the sled?

Dafna11 [192]

Answer:

15m/s²

Explanation:

Given parameters:

Initial velocity = 10m/s

Final velocity = 40m/s

Time taken = 2s

Unknown:

Average acceleration = ?

Solution:

Acceleration is the rate of change of velocity with time;

Acceleration = $\frac{Final velocity - Initial velocity }{time}$

Acceleration = $\frac{40 - 10}{2}$ = 15m/s²

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2 years ago

If we push a piece of furniture to move it but we don't manage to move it, are forces acting on

zubka84 [21]

Answer:

Yes

Explanation:

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3 years ago

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Explanation:

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3 years ago

A cylindrical blood vessel is partially blocked by the buildup of plaque. At one point, the plaque decreases the diameter of the

densk [106]

Answer:10.4 times of initial velocity

Explanation:

Given

Diameter reduced by 69 %

it approaches with velocity $v_0$

suppose its velocity is v during blocked passage

suppose d is the initial diameter and $d_2$ diameter is

$d_2=d(1-0.69)$

$d_2=0.31 d$

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$Q_1=Q_2$

$d^2v_0=d_2^2v$

$v=10.40 v_0$

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3 years ago

The model shows the star Wolf 359, the sun, and Star X. It takes 7.8 years for light produced on Wolf 359 to reach the sun.

saul85 [17]

Answer:

390 light-years

Explanation:

50 x 7.8 =390

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2 years ago