The Bohr model of the hydrogen atom predicts an ionization energy of 13.6 eV. Using this model, what would we expect for the ionization energy of the Li++ ion, which has 3 protons?
A) 40.8 eV B) 54.4 eV C) 79.6 eV D) 122 eV E) 27.2 eV
D
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At what minimum speed must a roller coaster be ¬traveling when upside down at the top of a circle so that the passengers do not fall out? Assume a radius of curvature of 7.6 m
What will be an ideal response?
If Europa turns out to have a subsurface ocean which is a 100 km deep or more, how much water would this correspond to, compared to the amount of water in the Earth's oceans?
A) about the same B) roughly twice as much C) about ten times as much D) roughly half as much
An object is attached to a hanging unstretched ideal and massless spring and slowly lowered to its equilibrium position, a distance of 6.4 cm below the starting point
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A player hits a tennis ball into the air with an initial velocity of 32 m/s at 35° from the vertical. How fast is the ball moving at the highest point in its trajectory if air resistance is negligible?
What will be an ideal response?