Banking angle is the angle between the normal horizontal path (N) and the curved banked path. The angle of banking of a curved path is defined as the angle through which the outer edge of the road is raised over the inner edge.
It is calculated as:

Here,
v = Linear velocity of object
r = Radius of the curved path
= Acceleration due to gravity
Rewriting the equation to solve for the radius we have that



Therefore the radius of a bobsled turn banked at 75° taken at 30m/s is 24.6m
Red has a longer wavelength than yellow
Answer:
.C. Refraction of light passing through the lens.
Explanation:
The convergence or divergence of the rays of light is only due to refraction of light. When a ray of light is made to pass through a lens, it bend's from it's original path. This bending of light from its original path is called Refraction. Whereas in Reflection the ray of light is reflected back into the same medium.
Hence the correct option is C. Refraction of light passing through the lens.
Answer: c) Positive acceleration describes an increase in speed; negative acceleration describes a decrease in speed.
Hey
On Earth, you can move or you can not move. if you are moving 50 mph that means relative to Earth (not the Andromeda galaxy). When you start moving (accelerating) you are now moving relative to Earth. when you start slowing down (decelerating [most scientists just say you have negative acceleration]) you are starting to match your velocity to Earth's velocity.
Hope it helped and made any sence at all.
Spiky bob your answerer.
The right half will be a new bar magnet of 2cm with north pole on the right side and south pole on teh left.