3. a heavy mass is swung in a horizontal circle at a constant speed. if the radius of the
circle is tripled, what happens to the centripetal force experienced by the mass? (hint-
look at formula)
calauate the force acting between the earth and the moon using this data:

How does an observation about an object differ from an inference about that object

What describes the formation of horizon b? a. forms at the surface b. features parent material c. undergoes the most change d. forms due to decomposed material i think the answer is c. undergoes the most change

Estimate the kinetic energy of mars with respect to the sun as the sum of two terms, that due to its daily rotation about its axis, and that due to its yearly revolution about the sun. (assume mars is a uniform sphere with mass = 6.4×10 to the power of 23 kg, radius = 3.4×10 to the power of 6 m, rotation period = 24.7 hours, orbital period = 686 days and is 2.3×10 to the power of 8 km from the sun.)