Well we know the hypotenuse of the triangle which is 253 m. And we know the angle of the triangle which is 55.8 degrees. So we want to find y. And to find y we use sin. And sin is a ratio, the ratio of the opposite leg, and hypotenuse. So sin(55.8) = y/253. Now we solve for y by multiplying both sides by 253. And finally we get 209.25 as the length of the y component.
It is a gas. Gases can easily change volume and always fill the whole container.
Explanation:
Echo method formula for speed of sound : 2 x distance / time taken
2 x distance / 58 = 1540 m/s
2 x distance = 1540 m/s / 58 s
= 26.55172414 m
Distance = 26.55172414 / 2
= 13.27586207
= 13 m
An equation showing the relationship between the THREE forces is R -W +F= 0
<h3>What is moment of force?</h3>
The equal and opposite force acting at a point from the axis of rotation is called the moment of force.
M = F x r
Given is a wheelbarrow and stones with a total mass of 43 kg. The wheelbarrow is in equilibrium with two of the three forces acting on it
Taking moment about the wheel, we get
-43x 9.81 x 0.6 + F x 1.5 =0
F = 43 x 0.6/1.5
F = 168.732 N (upward force)
Summation of forces in y direction is zero.
R -W +F= 0
Where, R is the normal force, W is the Weight force and F is the applied force.
Thus, this is the equation representing all the three forces acting on wheelbarrow.
Learn more about moment of force.
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