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andre [41]
3 years ago
11

why is it important for scientist and engineer who plan uncrewed missions to accurately know the masses and the paths of the pla

nets the spacecraft will visit?
Physics
1 answer:
vodka [1.7K]3 years ago
8 0

Answer:

u may find your answer from this link-

https://www.nasa.gov/50th/50th_magazine/scientists.html

Explanation:

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Two negative charges that are both -3.0 C push each other apart with a force of 19.2 N. How far apart are the two charges ?
fgiga [73]
The Coulomb's force acting between two charges is
F=k_e  \frac{q_1 q_2}{r^2}
where k_e = 8.99 \cdot 10^9 N m^{-2}C^{-2} is the Coulomb's constant, q1 and q2 the two charges, and r the distance between them.

Using q_1 = q_2 = -3 C, we can find the distance between the two charges when the force is F=19.2 N:
r=  \sqrt{k_e  \frac{q_1 q_2}{F} }=  \sqrt{ 8.99\cdot 10^9 \frac{(-3.0C)^2}{19.2 N} }=6.5 \cdot 10^4 m = 65 km
5 0
3 years ago
Several scientists from different countries are asked to examine the results of an experiment before a journal will print it. Wh
DENIUS [597]
The term that is being described by the definition given above is called PEER REVIEW. What is done in the peer review is that, the experiment is being evaluated or checked first by people who are also working on the same field. So the answer for this is option C.
8 0
4 years ago
How would you find kinetic energy?
Flura [38]

Answer:

Kinetic energy is directly proportional to the mass of the object and to the square of its velocity: K.E. = 1/2 m v2. If the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

Explanation:

6 0
2 years ago
Read 2 more answers
In order for a reaction to begin what is required
Andrew [12]

Activation energy?

are there multiple choices?

3 0
3 years ago
Read 2 more answers
Why the object will not return to its original position?<br>why does the centre of mass fall?​
dusya [7]

Answer:

the object will not return to the original position because it will not have any forces helping it to go up the hill

the center of mass falls since it is going downwards

Hope this helps!! have a great day

Explanation:

8 0
4 years ago
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