4 years ago

Ordena de mayor a menor las siguientes velocidades.

Physics

1 answer:

Sav [38]4 years ago

4 0

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Without Newton’s third law of motion, what would an object sitting on a table do?

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Newton's third law: If an object A exerts a force on object B, then object B must exert a force of equal magnitude and opposite direction back on object A. This law represents a certain symmetry in nature: forces always occur in pairs, and one body cannot exert a force on another without experiencing a force itself.

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Is hot asphalt that is poured into the ground and cools a physical or chemical change?

Gala2k [10]

Physical change
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Star A and Star B have measured stellar parallax of 1.0 arc second and 0.75 arc second, respectively. Which star is closer? How

zhuklara [117]

Answer:

Star A is closer than Star B

Explanation:

As we know that in parallax method of distance measurement the angle subtended by the star when it covers a distance of one Parsec arc length, it is known as parallax angle

Here we can say

$angle = \frac{1 Parsec}{distance}$

so we have

$distance = \frac{1 Parsec}{angle}$

so here we have

angle subtended by Star A = 1 arc sec

angle subtended by star B = 0.75 arc sec

now we have

distance for star A is given as

$d_a = \frac{1 Parsec}{1} = 1 Parsec$

distance of star B is given as

$d_b = \frac{1 Parsec}{0.75} = 1.33 Parsec$

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3 years ago

An object with a mass of 2 kg is moving with a velocity of 15 m/s.

7nadin3 [17]

KE= 1/2MV^2 - equation
KE= 1/2 (2 kg)(15 m/s)^2 - plug it to the equation
KE= (1 kg)(225 m/s) - multiply
KE= 225 J - Answer (letter D)
Hope this helps

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A sprinter who is running a 200-m race travels the second 100 m in much less time than the first 100m because

Harrizon [31]

Answer:

He is warmed up now

Explanation:

His muscles are better and stretched now

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