Suppose you have made the following hypothesis: the greater the height from which you drop a ball, the faster the ball will be traveling when it hits the ground because gravity has more time to speed it up.
what prediction could you make based on this hypothesis?
a. two identical balls dropped from a height of 5 m will hit the ground with different speeds.
b. two identical balls dropped from a height of 10 m will hit the ground with different speeds.
c. a ball dropped from a height of 10 m will hit the ground at a higher speed than an identical ball dropped from a height of 5 m.
d. a ball dropped from a height of 5 m will hit the ground at a higher speed than an identical ball dropped from a height of 10 m.
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When 13.3 g koh is dissolved in 102.7 g of water in a coffee-cup calorimeter, the temperature rises from 21.4 Β°c to 31.53 Β°c. what is the enthalpy change per gram of koh (j/g) dissolved in the water? * take the density of water as 1.00 g/ml. * assume that the solution has a specific heat capacity of 4.18 j/g*k. enter to 1 decimal place. do not forget the appropriate sign /(+). canvas may auto-delete the (+) sign
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Suppose you have made the following hypothesis: the greater the height from which you drop a ball,...
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