Which of the following is true about a planet orbiting a star in uniform circular
motion?
o
a. the velocity vector of the planet points toward the center of the
circle.
b. the speed of the planet is always changing.
c. the velocity of the planet is constant.
d. the acceleration vector of the planet points toward the center of
the circle.

The period of a pendulum varies directly as the square root of the length of the pendulum and inversely as the square root of the acceleration due to gravity. find the period when the length is 144 cm and the acceleration due to gravity is 980 cm per second squared, if the period is 7pi seconds when the length is 289 cm and the acceleration due to gravity is 980 cm per second squared.

Why do different substances have diffrent properties

When flexing to a reflective style, one should be specific, brief and to the point, and maintain a fast and decisive pace?