What must be true of a force that causes an object to move in a circular motion?
it acts parallel to the velocity and is directed toward the center of the circle.
it acts parallel to the velocity and is directed away from the center of the circle.
it acts perpendicular to the velocity and is directed toward the center of the circle.
it acts perpendicular to the velocity and is directed away from the center of the circle.
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  n=   0.0000 - 0.3750 i  

  n=   0.0000 + 0.3750 i

step-by-step explanation:

one of these should be correct

answer: the answer is (b) amie should have multiplied

step-by-step explanation: given a sphere and a cylinder with same radius and height.

let, 'r' be the radius of the cylinder and sphere and 'h' be the height of the cylinder. according to the question,

r = h.

now, the volume of the sphere will be

and the volume of the cylinder will be

therefore, we have

thus, ammie should have multiplied the volume of the sphere

i believe your answer is 99.7% of 7-year-old children are between 46.6 inches and 49.5 inches tall.