A microscope has a tube length of 20 cm. The objective’s focal length is 2.0 cm and the eyepiece focal length is 0.50 cm. What is the “approximate” magnification provided by this microscope? (The “approximate” is found using qobjective = L.)
1.–200
2.–500
3.–1000
4.–2000
2
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(For discussion.) Which do you personally think is the weirdest aspect of quantum mechanics and why?
A. It does not support objectively real quanton properties. B. It requires possibly superluminal connections. C. It has two incompatible time evolution rules. D. There seems to be some kind of unexplained disconnect between microscopic and macroscopic physics.
__________is a graph of orbital velocity versus radius in the disk of a galaxy
A) A rotation curve B) A normal distribution C) The H-R diagram D) The light curve
The units of work are the same as those of ______________
Fill in the blank(s) with correct word
A proton and antiproton each with total energy 800 GeV collide head-on. What is the total energy (particles + energy) released?
a. zero c. 400 GeV b. 800 GeV d. 1600 GeV