Answer:
Explanation:
You have three forces F1, F2 an F3 that produce the following acceleration:
a = −(8.00m/s^2)ˆi + (6.00m/s^2)ˆj
you know that force F1 and F2 are:
F1 = (30.0N)ˆi + (16.0N)ˆj
F2 = −(12.0N)ˆi + (8.00N)ˆj
and the force F3 is unknown:
F3 = F3x ˆi + F3y ˆj
The second Newton law is given by the following equation:
F: the total force = F1 +F2 + F3
m: mass of the object = 2 kg
By the properties of vectors you have:
![\vec{F_1}+\vec{F_2}+\vec{F_3}=m\vec{a}\\\\(30.0-12.0+F_{3x})N\hat{i}+(16.0+8.00+F_{3y})N\hat{j}=(2.0kg)[(-8.00m/s^2)\hat{i}+(6.00m/s^2)\hat{j}]\\\\(18.0+F_{3x})N\hat{i}+(24.0+F_{3y})\hat{j}=(-16.00N)\hat{i}+(12.0N)\hat{j}](https://tex.z-dn.net/?f=%5Cvec%7BF_1%7D%2B%5Cvec%7BF_2%7D%2B%5Cvec%7BF_3%7D%3Dm%5Cvec%7Ba%7D%5C%5C%5C%5C%2830.0-12.0%2BF_%7B3x%7D%29N%5Chat%7Bi%7D%2B%2816.0%2B8.00%2BF_%7B3y%7D%29N%5Chat%7Bj%7D%3D%282.0kg%29%5B%28-8.00m%2Fs%5E2%29%5Chat%7Bi%7D%2B%286.00m%2Fs%5E2%29%5Chat%7Bj%7D%5D%5C%5C%5C%5C%2818.0%2BF_%7B3x%7D%29N%5Chat%7Bi%7D%2B%2824.0%2BF_%7B3y%7D%29%5Chat%7Bj%7D%3D%28-16.00N%29%5Chat%7Bi%7D%2B%2812.0N%29%5Chat%7Bj%7D)
Both x and y component must be equal in the previous equality, then you have:
Hence, the vector F3 is:
Answer:
Option B: change the objective lens
Explanation:
The revolving nosepiece is one of the parts of a microscope. Its responsibility is to hold the objective lenses.
<span>C. Measure the soil's volume and then the volume of water that the soil can absorb.</span>
Answer:
the first one, gas
Explanation:
if its not what you looking for my b
<span>Satellite in a circular orbit of radius r around planet x has an orbital period t. if planet x had one-fourth as much mass, the orbital period of this satellite in an orbit of the same radius would be 2t</span>
