A2.0 g marble is fired vertically upward using a spring gun. the spring must be compressed 3.1 cm if the marble is to just reach a target 19 m above the marble's position on the compressed spring. (a) what is the change δug in the gravitational potential energy of the marble-earth system during the 19 m ascent? (b) what is the change δus in the elastic potential energy of the spring during its launch of the marble? (c) what is the spring constant of the spring? (a) number enter your answer for part (a) in accordance to the question statement units choose the answer for part (a) from the menu in accordance to the question statement
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Chemistry, 22.06.2019 02:10
When 225mg of anthracene, c14h10(s), was burned in a bomb calorimeter the temperature rose by 1.75k. calculate the calorimeter constant. by how much will the temperature rise when 125mg of phenol, c6h5oh(s), is burned in the calorimeter under the same conditions? (δch< (c14h10,s)=–7061 kj mol−1.)
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Jose and eric were given four samples in lab. the results of their analysis are shown in the table. based on the data they collected, which sample is most likely a metal?
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What does the field of thermodynamics relate to a-changes in nuclear reactions b- changes in energy in systems c changes in molecular structure d changes in atomic properties
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A2.0 g marble is fired vertically upward using a spring gun. the spring must be compressed 3.1 cm if...
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