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vova2212 [387]
3 years ago
9

An unmanned spacecraft leaves for Venus. Which statements about the spacecrafts journey are true?

Physics
2 answers:
Yuri [45]3 years ago
4 0
<span>The weight of the spacecraft keeps changing. 
</span>
<span>The mass of the spacecraft remains the same.

These are the correct answers</span>
san4es73 [151]3 years ago
3 0

Answer:

A)The weight of the spacecraft keeps changing.

D) The mass of the spacecraft remains the same

Explanation:

As we know that the acceleration due to gravity depends on the height from the surface

As we know that the force due to gravity on objects near the surface is given as

F = \frac{Gm_1m_2}{(R+h)^2}

here we know that

R = radius of planet

h = height from the surface of planet

So as we move away at more height the gravitational attraction force will keep on decreasing.

This gravitational attraction force of planet is also known as weight so we can say that the weight of the object will keep on changing while object move away.

Also we know that mass of object is quantity of the matter which always remains constant.

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san4es73 [151]

Answer:

The dart with the small mass will travel the farthest distance.

Explanation:

Acceleration is proportional to force times mass, and inertia is proportional to mass. Inertia is the reluctance of a moving body to stop, and a stationary body to start moving (inertia increses with mass). Assuming they both have the same aerodynamic design, and that they are both launched with the same force applied for the same time duration, the dart with less small mass will accelerate faster than the big mass dart. From this we can see that the small dart will have covered a longer distance before the effect of the force stops, when compared to the more massive dart.

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Hope its the answer you are finding and hope it helps....
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3 years ago
The electric field between two parallel plates connected to a 45-volt battery is 500. volts per meter. The distance between the
kotykmax [81]
Electric field = potential difference
                       -----------------------------
                        distance between plates
 
 Distance between plates   =         45
                                                  ----------
                                                     500
 
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Explanation:

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