Answer:
E.) None of the above
Explanation:
Draw a free body diagram. There are two forces acting on the car. Normal force perpendicular to the road, and weight downward.
Sum of the forces perpendicular to the road:
∑F = ma
N − mg cos θ = 0
N = mg cos θ
Sum of the forces towards the center of the circle:
∑F = ma
N sin θ = mv²/r
mg cos θ sin θ = mv²/r
g cos θ sin θ = v²/r
v = √(gr cos θ sin θ)
Given r = 50 m and θ = 5°:
v = √(9.8 m/s² × 50 m × cos 5° × sin 5°)
v = 6.52 m/s
v = 14.6 mph
The equator is the closest part of out planet that is closest to the sun, which means that the continents closest to the equator will in turn be warmer.
The imaginary line that circles the Earth's center is known as the Equator. It divides the Earth into the Northern and Southern Hemispheres and is located halfway between the North and South Poles.
An equator is a hypothetical line that circles a planet or other celestial body in the centre. At its Equator, the Earth is at its broadest. The circumference of the Earth, measured at its equator, is 40,075 kilometers (24,901 miles).
The equatorial bulge is a phenomena caused by the Earth's diameter being wider in the Equator. A straight line with its endpoints on the circle's edge and a path through its center is used to calculate a circle's diameter.
Therefore, The equator is the closest part of out planet that is closest to the sun, which means that the continents closest to the equator will in turn be warmer.
To learn more about equator, refer to the link:
#SPJ2
It is called a slope. A slope pointing downwards like this slash \ is considered a negative slope. If a slope pointing upward like this slash / then it is considered a positive slope. What if you had a line on a graph not pointing in either of those directions? If it were pointing straight up like this, | then it would be known as an undefined slope. Last but not least, if you had a line on a graph straight across like this, ____ then it would be zero slope :D
Hope this helps and is a little clear to understand :)