A proposed high-speed train between Houston and Dallas will travel a distance of 386 kilometers in 5.40 103 seconds. What is the average speed of this train
in meters per second?
o 1.40 x 10-2 m/s
o 7.50 x 10-2 m/s
0 71.5 m/s
O 140 m/s

Question 1 (5 pts): what is the maximum distance for which you can you resolve the two individual headlights of an on-coming truck as two separate lights rather than one if the headlights are separated by 2.00 m and your eye has a diameter of 1.00 centimeter? assume a wavelength of 500 nm.

What is a subatomic particle with a negative charge and very little mass?

Ateacher gives students four liquids commonly found in the kitchen - vinegar, apple juice, dish detergent, and milk - and ph indicator strips, which measure acidity. the teacher asks the students to put the liquids in order from most acidic to most basic. what type of investigation could the students conduct to determine the correct order for the liquids?