Chemistry, 05.10.2020 14:01 roudjinapierre214
A student athlete kicks a soccer ball from rest. The mass of the soccer ball equals 0.45 kg and
her foot is in contact with the ball for 0.3 seconds. The soccer ball moves down the field with a
speed of 6.0 m/s. Based on this information, the force of the kicker's foot on the ball is 9.0 N.
But what magnitude of force did the 0.45 kg ball exert on the kicker's foot?
Answers: 2
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About 3% of the water on earth is freshest. only about 40% of that freshwater is available for human use. why is so much freshwater unavailable for human use?
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#7 how does the structure of amino acids allow them to form a polypeptide? each amino acid has an amino group and a carboxyl group. each amino acid has a hydrogen atom and a carboxyl group. each amino acid has a carboxyl group and an r group. each amino acid has an r group and a hydrogen atom.
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The equation below shows the reaction of zinc with hydrochloric acid (hcl). zn (s) + 2 hcl (aq) —> zncl2 (aq) + h2 (g) what will happen if the concentration of hcl is decreased? a. more zncl2 will be produced. b. the reaction rate will slow down. c. the hydrochloric acid will become more acidic. d. the reaction will produce water instead of hydrogen gas.
Answers: 1
A student athlete kicks a soccer ball from rest. The mass of the soccer ball equals 0.45 kg and
h...
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