The third force C is in the opposite direction of the sum of the first two forces, A+B, but the magnitude is the same as A+B
Since A & B are at right angles we can just use Pythagoras and trig:
A+B magnitude = sqrt(6^2 + 3^2) = 6.71
A+B angle = arctan(6/3) deg north of east = 63.4 deg (first quadrant)
So C magnitude = 6.71 (same as A+B)
[C angle = 63.4 deg south of west (third quadrant) = -180+63.4 deg polar = -116.6 deg
Answer: A positively charged ion/ cation
Explanation: When an atom loses all of its electrons, it becomes a positively charged ion. Also referred to as the cation, the object will have a shortage of electrons, leading to a positive charge. Keep in mind that an atom will become positive if it loses electrons, and will become negative if it gains electrons.
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Answer:
Because the force one needs to apply is reduced.
Explanation:
- Work can be expressed in terms of force and distance as follows,
Work = Force × distance
- To be more precise, the selection of these two parameters should be in a manner that the distance is what the line of action of the force traces.
- It is obvious that for a given amount of work when one parameter is changed the other changes to counteract the change of the first one.
- Imagine the situation shown in the attached figure. The amount of work that needs to be done during the lifting of the mass to a height of
vertically is
. - On the slope, however, one needs to push the object an
distance up to get the object to that
height ultimately. - The work he does on the slope is
and since
,
. - The force that needs to be applied is less than that applied in the vertical lift. Hence it feels easier. #SPJ4
When we shake a mango tree, the mangoes fall down. It is because when we shake the tree, the mango tend to be rest due to inertia where as the branches are in motion. That is why the mangoes tend to be at rest due to inertia where as the branches are in the motion.
<span>1. 10x
2. fault line
3. UV Waves
4. through solids and liquids
5. inner core
6. low temperature
7. cinder cone
8. earth's core
9. they are all caused by plate movement
10. inner mantle
11. transverse
12.divergent
13. none of these
14. fault
15. Lithospheric plates
16. foreshocks and aftershocks can happen at the same time
17. stratosphere
18. this question is not complete</span>