Answer:
a) 202.7 N
b) 58.1 N
c) 74.1º N of E.
d) 210.9 N
Explanation:
a)
- The net force exerted in the y-direction, will be the sum of FH (which is directed northwards) and the y-component of FA.
- Since the magnitude of FA is 155 N and the angle of FA with the y-axis, is 22º (E of N), we can find the N-S component of FA, just applying the the definition of cosine, to the triangle defined by FA, the y- axis and a segment parallel to the x- axis between FA and the y-axis, as follows:
⇒ Fy = FH + FAy = 59 N + 143.7 N = 202.7 N (2)
b)
- We can proceed exactly in the same way for the x-axis.
- Since FH is directed due North, it has no component along the x-axis.
- So, Fx is directly the component of FA along the x-axis, which can be found applying the definition of sine to the same triangle than in a) as follows:
c)
- Taking the same triangle than in a) and b), we can apply the definition of tangent, in order to find the angle between F and the x-axis, as follows:
⇒ θ = tg⁻¹ (3.5) = 74.1º N of E. (5)
d)
- In order to be equal and opposite to the combined force FH+FA, it must have the same magnitude.
- This magnitude can be found applying the Pythagorean Theorem to the same triangle that we used in a), b) and c):
Answer:
to both 1)mass and 2)velocity, 3)momentum
Explanation:
<span>The answer is The conductance of a conductor is inversely
proportional to the cross-sectional area of the conductor.</span>
<span>Conductance is directly related to the ease offered by any material to the passage of electric current. Conductance is the opposite of resistance. The higher the conductance, the lower the resistance and vice versa, the greater the resistance, the less conductance, so both are inversely proportional</span>
Answer:
W and X
Explanation:
Slope of the selected part is a constant positive acceleration