Answer:
F = 7.2N
Explanation:
The resultant of two forces acting at some angle is given by using the vector addition as given below
F =√F1^2+F2^2+2F1F2cosθ
Where F1 = 6N and F2 = 8N
θ = 240°
Substituting the values into the equation above
F = √ 6^2+8^2+ 2(6×8)cos240
F =√ 36+64+96cos240
F = √ 100+96 ×-0.5
F = √ 100-48
F = √ 52
F = 7.211
F = 7.2N
Answer:
displacement vector is -16i
Explanation:
Given data:
Displacement relative to entry of tunnel is 20 m
Distance from entry of tunnel at which she notice about camera missing is 6 m
swim distance is 10 m
total distance from entry of tunnel after she swin back is 20+ 6 = 26 m
After covering 10 m to find a camera she will be at 26 -10 = 16 m
If direction out from tunnel is taken as positive then her displacement vector with respect to entry of tunnel is - 16i
where i is unit positive vector.
I would guess anything that is black? black absorbs there most light energy. that's is why a black car in the sun will always be hotter inside than a white car.
Answer:
** incident ray.
Incident ray - the ray of light falling on the surface AB is called the incident ray
reflected ray.
** Reflected ray - the incident ray bouncing back in the same medium after striking the reflecting surface is called reflected ray.
The Himalayas, Andes, and the Alps are some <span />
