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Gwar [14]
3 years ago
6

An astronaut throws a rock. the rock travels through outer space at a constant velocity. which statement applies to the motion o

f this rock?
A- an unbalanced force is acting on the rock, causing it to accelerate.
B-the rock will undergo constant acceleration until a force acts on it.
C- The rock will continue on its current path until an unbalanced force acts on it.
D- The force that makes the rock move through space is equal to its mass divided by its velocity
Physics
2 answers:
frez [133]3 years ago
7 0

This is an example of Newton's first law of motion:


An object at rest will remain at rest unless an unbalanced force acts upon it. Similarly, a moving object will remain moving in a straight line at constant velocity unless an unbalanced force acts upon it.


The answer is C.

Anika [276]3 years ago
5 0

Answer:

B.  a force equal to zero

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Explanation:

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<span>Q = mL 
</span>
We need to know the latent heat of fusion, L, for 0 degrees.

L = 336 kJ/kg, m = 2kg

where L is the latent heat for vaporization

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For conversion between 0 and 100 degree Celsius

Q = mcθ,   specific heat capacity = 4.2 kJ/kgK

Q = 2*4.2* (100 - 0) = 840 kJ

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Q = 2 * 2256 = 4512 kJ

Total heat = 672 + 840 + 4512 = 6024 kJ

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4 0
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A large vessel of the diameter of 14 mm divides into two identical smaller vessels but the velocity of blood in
ycow [4]

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Explanation:

The computation of the diameter of the smaller vessels is given below;

Given that

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Now we used the equation of continuity i.e.

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