Significant Figures: Which of the following numbers has 4 significant figures; which has 5 significant figures?(a) 3001(b) 0.00370(c) 4774.00(d) 29.290
What will be an ideal response?
(a) has 4 significant figures; (d) has 5 significant figures
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Weight and g: Two planets have the same surface gravity, but planet B has twice the radius of planet A. If planet A has mass m, what is the mass of planet B?
A. m/
B. m
C. m
D. 4m
E. m/4
A 4.0-kg mass is placed at (3.0, 4.0) m, and a 7.0-kg mass is placed at (3.0, -4.0) m. What is the moment of inertia of this system of masses about the x axis?
a. 275 kg•m2
b. 90 kg•m2
c. 176 kg•m2
d. 99 kg•m2
You press a stick that has a varying cross-sectional area horizontally between the palms of your hands. The area of the stick pushing against your left palm is twice the area of the stick pushing against your right palm.The force on your left palm is __________ the force on your right palm
Fill in the blank(s) with correct word
A muon behaves like an electron except that it has 207 times the mass of the electron. If a muon were bound to a proton, how would the energy levels in the Bohr model compare to those for a bound electron?
a. They would be the same. b. They would be (207)2 times as much as those for the electron. c. They would be 207 times as much as those for the electron. d. They would be (1/207) times as much as those for the electron.