Starting from rest, a dragster travels a straight 1/4 mi racetrack in 6.70 s with constant acceleration. What is its velocity when it crosses the finish line?
A) 296 mi/h B) 135 mi/h C) 188 mi/h D) 269 mi/h
D
You might also like to view...
Elements such as carbon, silicon and oxygen have been produced in stars and expelled as stars age in the interstellar medium. This is most likely due to these elements having cooled and condensed from aging stars to form dust grains, and carried out by a powerful winds
a. True b. False Indicate whether the statement is true or false
Earth's atmosphere gets most of its heat from the
A) Sun. B) Earth's core. C) both of these D) neither of these
In order to tell time at night, the ancient Egyptians of 3000 B.C. used
A) sundials, with light provided by the Moon. B) water clocks, measuring the flow of water through an opening. C) hourglasses, measuring the flow of sand through an opening. D) Moon clocks, which measured time based on the Moon's position relative to the stars. E) star clocks, which measured time based on the positions of stars at particular times of night and particular times of year.
In a thundercloud there may be an electric charge of +40 C near the top of the cloud and -40 C near the bottom of the cloud. These charges are separated by about 2.0 km. What is the electric force between these two sets of charges? (ke = 8.99 × 10^9 N•m2/C2)
a. 3.6 × 10^6 N c. 3.6 × 10^7 N b. 3.6 × 10^4 N d. 3.6 × 10^5 N