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Artist 52 [7]
3 years ago
9

Consider the two vectors A(with arrow above)=5i-3j and B(with arrow above)=-i-2j

Physics
2 answers:
KatRina [158]3 years ago
7 0
<span>
A= 5 i − 3 J and B = −i − 6 j 

A+ B 
=5 i − 3 j −i − 6 j = 4 i - 9 j ---answer 

A - B 
= 5 i − 3 j + i + 6 j = 6 i + 3j ---answer 

|A+B| 
= sq root [ 16 + 81] = 9.848 ---answer 

|A - B| 
= sq root [ 36 + 9] = 6.708 ---answer 

directions of A+ B 
= tan (-1) -9 /4 = - 66 deg --answer 

direction of A- B 
= tan (-1) 3 /6 = 26.56 deg --answer</span>
djyliett [7]3 years ago
4 0

Answer:

9j-

Explanation:

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1) On the way to the moon, the Apollo astro-
kramer
(1) You must find the point of equilibrium between the two forces,

<span>G * <span><span><span>MT</span><span>ms / </span></span><span>(R−x)^2 </span></span>= G * <span><span><span>ML</span><span>ms / </span></span><span>x^2
MT / (R-x)^2 = ML / x^2

So,

x = R * sqrt(ML * MT) - ML / (MT - ML)
R = is the distance between Earth and Moon.

</span></span></span>The result should be,
x = 3.83 * 10^7m
from the center of the Moon, and 

R - x = 3.46*10^8 m
from the center of the Earth.


(2) As the distance from the center of the Earth is the number we found before,
d = R - x = 3.46*10^8m
The acceleration at this point is
g = G * MT / d^2
g = 3.33*10^-3 m/s^2
6 0
3 years ago
How much larger is the diameter of Jupiter compared to the diameter of Saturn?
allsm [11]
Really long we’ll not long but far in distance
5 0
3 years ago
What is the 4th dimension? I have heard that it's time, it's a from of saying characteristic. I don't know I need help on this,
sashaice [31]

If you want to tell a friend about a fish you caught or a tree you cut down,
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Dimensions are numbers used to describe the location of a point, and the
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3 0
3 years ago
What factors determine the magnitude of the electric force between two particles ?
svp [43]
The electric force between the two particles are calculated through the equation,
 
                          F = kQ₁Q₂ / d²

where F is the force, k is a constant called Coulomb's law constant, Q₁ and Q₂ are the charges, and d is the distance. This equation is called the Coulomb's law. 

It can be seen from the equation above that the electric forces between the objects are majorly affected by the substance's charges and distance. 

The answer to this item is therefore letter A. 
7 0
3 years ago
Read 2 more answers
Thomas needs to move an 80 kg rock, but cannot lift it. He decides to use a
ArbitrLikvidat [17]

Answer:

4

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The mechanical advantage is therefore 800 N / 200 N = 4.

5 0
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