The night sky is dark because the universe is not infinitely old
Indicate whether the statement is true or false
T
You might also like to view...
As you walk away from a plane mirror on a wall, the height of your image
A) is always the same size. B) is always a real image, no matter how far you are from the mirror. C) gets smaller. D) changes from being a virtual image to a real image as you pass the focal point. E) may or may not get smaller, depending on where the observer is positioned.
If H equals 50 km/sec/Mpc, then a galaxy with a radial velocity of 50,000 km/sec will have a distance of about 1 Mpc
Indicate whether the statement is true or false
A transformer is to be designed to increase the 30 kV rms output of a generator to the transmission-line voltage of 345 kV rms. If the primary winding has 80 turns, how many turns must the secondary have?
A. 6 B. 70 C. 920 D. 9200 E. 12
The Doppler effect is sensitive only to motion along the line of sight
a. True b. False Indicate whether the statement is true or false