Why are galaxies visible

How do we calculate the "range" of the measurements? A. subtract the smallest value from the largest value B. subtract the largest value from the smallest value C. add up all the measurements D.

Which imaging technique uses sound waves rather than electromagnetic waves? a. MRI b. X-ray imaging c. sonography d. CT scan

Wave length 3m and frequency 300 what is the speed of the wave

Two wooden boxes of equal mass but different density are held beneath the surface of a large container of water. Box A has a smaller average density than box B. When the boxes are released, they accelerate upward to the surface.

a 1507kg truck enters a corner with a radius of 465m with a centripetal force magnitude of 3410n. What is the truck's speed?

What is the difference between convex and concave mirrors and lens?

Which is the best example of Newton's Second Law of Motion? A student has on roller skates and he decides to push against the railing. He immediately begins to roll backwards. A small ball and a larger ball with greater mass are dropped from a roof.

Which of the following represents a car traveling 20 miles/hour? 40 miles traveled in 2 hours 60 miles traveled in 6 hours 40 miles traveled in 3 hours 10 miles traveled in 5 hours

What is micromegas consider to be

A group of scientists is trying to launch an object into orbit, and the object is traveling at 6500 m/s. Which best explains why the object will not successfully orbit Earth? A.) There is not enough air resistance to keep the object moving. B.