Read the passage below and answer the question. Whether change takes place rapidly or slowly, the laws and principles that nature follows in today’s world, such as gravity, also applied in the geologic past. For example, the meteorite that likely killed the dinosaurs affected the ocean, the atmosphere, and life according to the same laws and behaviors of physics, chemistry, and biology we can observe in nature and verify by experimentation today.

Which of the principles below does this passage best describe?

a. catastrophism
b. gradualism
c. uniformitarianism
d. speciation

The velocity of car is 80.0 miles per hour. what is the velocity of car in meters per second? (1 km -0.621 miles) m/s

What is the electric force acting between two charges of -0.0045 c and -0.0025 c that are 0.0060 m apart? use fe=kq1q2/r^2 and k = 9.00 x 10^9 n*m^2/c^2 a. 1.7 x 10^7 n b. -1.7 x 10^7 n c. -2.8 x 10^9 n d. 2.8 x 10^9 n

16. a brave but inadequate rugby player is being pushed backward by an opposing player who is exerting a force of 800 n on him. the mass of the losing player plus equipment is 90.0 kg, and he is accelerating at 1.20m/s2 size 12{1 "." "20"" m/s" rsup { size 8{2} } } {} backward. (a) what is the force of friction between the losing player’s feet and the grass? (b) what force does the winning player exert on the ground to move forward if his mass plus equipment is 110 kg? (c) draw a sketch of the situation showing the system of interest used to solve each part. for this situation, draw a free-body diagram and write the net force equation.