A car of mass 1100 kg that is traveling at 27 m/s starts to slow down and comes to a complete stop in 578 m. What is the magnitude of the average stopping force exerted on the car?
A) 690 N
B) 550 N
C) 410 N
D) 340 N
A
You might also like to view...
The centroid of the assemblage of lines shown in the figure below is at coordinates (x, y, z):
(A) 3, 0.9, 0.4
(B) 4, 1.5, 2
(C) 3, 2, 1
(D) 2.4, 3, 1.4
Scientists recently confirmed the presence of water ice at the poles of the Moon. Where did this water come from?
A. Early lunar oceans evaporated quickly, and the water vapor condensed in deep polar craters. B. The ice is all that remains of the Moon's polar ice caps, present in the Moon's early history. C. Water was deposited on the Moon by cometary impacts, and it condensed in deep polar craters. D. The water is released as polar region crust stretches due to tidal forces from Earth. E. None of these choices are correct.
An ancient building was known to have been built 3 000 years ago. Approximately what proportion of Carbon-14 atoms are yet in the building's wooden framing compared to the number which were present at the time of its construction? (half life of 14C = 5 730 years)
a. 0.425 b. 0.500 c. 0.517 d. 0.696
When a massive star begins to run out of hydrogen to fuse, its outer layers of gas ________.
A. expand and cool B. contract and heat C. contract and cool D. expand and heat