The number of electrons in a hydrogen atom is ______________
Fill in the blank(s) with correct word
one
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Buoyancy: A waiter fills your water glass with ice water (containing many ice cubes) such that the liquid water is perfectly level with the rim of the glass. As the ice melts,
A. the liquid-water level remains flush with the rim of the glass. B. the liquid water level rises, causing water to run down the outside of the glass. C. the liquid-water level decreases.
What is the x-component of a force vector of magnitude 27.0N directed at 73o above the negative y-axis?
A. +7.9N B. -7.9N C. -25.8N D. -8.3N E. +25.8N F. +8.3N
A 1.00 kg mass is connected to a spring with a spring constant of 9.00 N/m. If the initial velocity is 4.00 cm/s and the initial displacement is 0.00 cm, then what is the maximum spring potential energy of the simple harmonic motion?
A. 
B. 
C. 
D. 
E. 
Suppose the jovian planet atmospheres were composed 100 percent of hydrogen and helium rather than 98 percent of hydrogen and helium. How would the atmospheres be different in terms of color and weather?
What will be an ideal response?