How many significant figures does the following value have?
43.023
a. three
b. two
c. four
d. five

Which is not a source of noise pollution? a)airplanes b)acid rain c)machines d)cars

An artificial satellite circles the earth in a circular orbit at a location where the acceleration due to gravity is 6.03 m/s^2. determine the orbital period of the satellite.

A0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. the velocity of the rock is 4.50 m/s. what is the centripetal force acting on the rock? 15.5 n 5.22 n 69.8 n 23.5 n