1. What is the force of gravity on a 8 kg cat on Earth? (Earth's acceleration of gravity is 9.81 m/s)
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Consider two less-than-desirable options. in the first you are driving 30 mph and crash head-on into an identical car also going 30 mph. in the second option you are driving 30 mph and crash head-on into a stationary brick wall. in neither case does your car bounce off the thing it hits, and the collision time is the same in both cases. which of these two situations would result in the greatest impact force?

Which of the following is true about fossils? a. fossils found in lower layers of sedimentary rock are older than fossils found in upper layers of sedimentary rock. b. fossils found in lower layers of sedimentary rock are as old as fossils found in upper layers of sedimentary rock. c. the relative age of fossils cannot be determined from their position in sedimentary layers.

Consider an electric field perpendicular to a work bench. when a small charged sphere of mass 3.62 g and charge −19.9 µc is carefully placed in the field, the sphere is in static equilibrium. what are the magnitude and direction of the electric field? (give the magnitude in n/c.)