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artcher [175]
2 years ago
9

In outer space, a piece of rock continues moving at the same velocity for

Physics
1 answer:
Ray Of Light [21]2 years ago
7 0

The absence of external force in the outer space, allows the piece of rock to continue moving at the same velocity for thousands of years.

<h3>Absence of external force on the outer space</h3>

The outer space is almost an absolute vacuum, because it's nearly empty. There is no matter such as air in the outer space that will provide an external force needed to change the velocity of the piece of rock.

From Newton's first law of motion, an object in a state of rest or uniform motion in a straight line, will continue in that state unless it is acted upon by an external force.

Thus, the absence of external force in the outer space, allows the piece of rock to continue moving at the same velocity for thousands of years.

Learn more about outer space here: brainly.com/question/24701339

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What is the weight in newtons of an object that has a mass of (a) 8 kg, (b) 0.04 kg, and (c) 760 mg?
Mars2501 [29]

The weight of object with a mass of 8 kg is 78.4 N.

The weight of object with a mass of 0.04 kg is 0.392 N.

The weight of object with a mass of 760 mg is 7.45 N.

<h3>What is weight?</h3>

The weight of an object is the force acting on the object due to gravity.

Weight, W = mg

where;

  • m is the mass of the object
  • g is acceleration due to gravity, 9.8 m/s²

<h3>Weight of object with a mass of 8 kg</h3>

W = mg

W = 8 kg x 9.8 m/s²

W = 78.4 N

<h3>Weight of object with a mass of 0.04 kg</h3>

W = mg

W = 0.04 kg x 9.8 m/s²

W = 0.392 N

<h3>Weight of object with a mass of 760 mg</h3>

W = mg

W = 0.76 kg x 9.8 m/s²

W = 7.45 N

Thus, the weight of object with a mass of 8 kg is 78.4 N.

The weight of object with a mass of 0.04 kg is 0.392 N.

The weight of object with a mass of 760 mg is 7.45 N.

Learn more about weight here: brainly.com/question/2337612

#SPJ1

8 0
2 years ago
Determine the components, the magnitude and the angle (counter-clockwise with respect to the positive x axis) of the resultant v
LenKa [72]

Answer:

Explanation:

We shall represent vector B and C in terms of i and j .

B = 5 cos115 i + 5 sin115 j

= -2.11 i + 4.53j

Similarly

C = 4 cos255 i + 4 sin225 j

= -1.04 i -3.86 j

R = B + C

= -2.11 i + 4.53j  -1.04 i -3.86 j

= -3.15 i + .67 j

magnitude of R

= √( 3.15² + .67² )

= √( 9.92 +.45 )

= 3.22

Angle Ф

TanФ = - .67 / 3.15

= - .21

Ф = - 12⁰

= 180 - 12

= 168 degree counterclockwise from positive x axis.

3 0
3 years ago
What is a living organism? Give a few examples.
zhuklara [117]

Answer:

It's a individual form of life. Examples of this are bacterium , protists and fungus

7 0
3 years ago
What happens when a car that weighs 300 lbs. driving at speeds of 80 mph collides with a bystander that weighs 180 lbs.
EleoNora [17]

Answer:

Basically, at these speeds, the car will, at random times, swerve a bit to one side or the other as if hit by some huge wind (even on the calmest of days). It doesn't happen at slower speeds driving mechanically identical cars, managed to accelerate to a formidable 150 mph and stay there for most of the journey, shifting to higher gears and remaining.

Hope this helped you!

Explanation:

3 0
4 years ago
What 2 planets have the shortest distance between them
grigory [225]
The two plants that have the shortest distance between them are Mercury and Venus which is roughly <span>31,248,757 miles separated from each other.</span>
3 0
4 years ago
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