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anastassius [24]
3 years ago
14

In deep space, there is very little friction. Once they launch a probe into deep space, where there are no external forces actin

g on it, scientists shut the probe’s engines off because the scientists want the probe to stop immediately. speed up. slow down. move at constant velocity.
Physics
2 answers:
Charra [1.4K]3 years ago
5 0

Answer:

move at constant velocity.

Explanation:

Newton's first law (also known as law of inertia) states that:

"when the net force acting on an object is zero, the object will keep its state of rest or if it is moving, it will continue moving at constant velocity".

In the case of the probe, friction in deep space is negligible, therefore when the engine is shut down, there are no more forces acting on the probe: the net force therefore will be zero, so the probe will move at constant velocity.

melamori03 [73]3 years ago
5 0
<span>move at constant velocity. 



</span>
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A vacuum tube can be used to__. A. change alternating current into direct current B. increase the strength of a signal.. C. turn
vesna_86 [32]

The correct answer of this question is :  A) Change alternating current into direct current.

EXPLANATION :

As per the question, we are given vacuum tube. Vacuum tube can be of various types. Normally it contains two electrodes called cathode and anode which are enclosed in an evacuated glass chamber . There are also other types of vacuum tubes which contain extra electrodes like control grid .

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4 0
3 years ago
Read 2 more answers
What is the impulse of a 3 kg object that starts from rest and moves to 20 m/s?
IrinaK [193]

Answer:

The impulse on the object is 60Ns.

Explanation:

Impulse is defined as the product of the force applied on an object and the time at which it acts. It is also the change in the momentum of a body.

F = m a

F = m(\frac{v_{2}  - v_{1} }{t})

⇒     Ft = m(v_{2} - v_{1})

where: F is the dorce on the object, t is the time at which it acts, m is the mass of the object, v_{1} is its initialvelocity and v_{2} is the final velocity of the object.

Therefore,

impulse = Ft = m(v_{2} - v_{1})

From the question, m = 3kg, v_{1} = 0m/s and v_{2} = 20m/s.

So that,

Impulse = 3 (20 - 0)

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2 years ago
There is the more role of the moon than the sun to occur tides in the oceans,why?
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Rearrange the formula for mechanical energy to solve for height:
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Explanation:

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Multiply both sides of the expression by \frac{1}{mg}

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Learn more:

Kinetic energy brainly.com/question/6536722

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