Novae are more closely related to type II than to type I supernovae
Indicate whether the statement is true or false
FALSE
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Can there be life on Mars? Is there proof that life existed on Mars? Defend your answer
What will be an ideal response?
Compound Microscope: A microscope has an objective lens of focal length 1.40 mm and an eyepiece of focal length 20.00 mm. It is adjusted for minimum eyestrain for persons with a near point of 25.0 cm. A blood sample is placed 1.50 mm from the objective. How far apart are the lenses?
A. 20 mm B. 21 mm C. 23 mm D. 41 mm
In a completely filled atomic shell,
a. the intrinsic spin of the electrons does not produce a resultant magnetic moment. b. the orbital motion of the electrons does not produce a resultant magnetic moment. c. the atom will be an alkali metal. d. only (a) and (b) are correct. e. none of the above are correct.
At t = 0 the switch S is closed with the capacitor uncharged. If C = 40 ?F, ? = 50 V, and R = 5.0 k?, how much energy is stored by the capacitor when I = 2.0 mA?
a.
20 mJ
b.
28 mJ
c.
32 mJ
d.
36 mJ
e.
40 mJ