A 30-kg child rides on a circus Ferris wheel that takes her around a vertical circular path with a radius of 20 m every 22 s. What is the magnitude of the resultant force on the child at the highest point on this trajectory?
a. 49 N
b. 0.29 kN
c. 0.34 kN
d. 0.25 kN
e. 0.76 kN
A
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A football is kicked at an angle, giving it a horizontal velocity of 25 m/s. At the highest point in its path, the football will have a velocity of ________ m/s and a horizontal acceleration of ________ m/s2.
What will be an ideal response?
The semi-major axis of an ellipse is:
A) the ratio of the distance between the two foci to the half of the length of the longest diameter of the ellipse. B) half the length of the shortest diameter of the ellipse. C) half the length of the longest diameter of the ellipse. D) the ratio of the longest diameter of the ellipse to the shortest diameter of the ellipse.
A nearsighted man wears -3.00 D lenses. With these lenses, his corrected near point is 25.0 cm. What is his uncorrected near point?
What will be an ideal response?
The largest plutons are called ______________
Fill in the blank(s) with correct word