Physics, 06.12.2021 18:40 Shaylaharrison15
Consider the case of the hockey player and the puck, but this time consider what happens while the player is using his muscles to swing his hockey stick before it hits the puck. Evaluate the following explanation for why the hockey stick speeds up as it gets closer to the puck. (You should draw your own G/R energy diagram on a separate sheet before reading the explanation.)
(1) As the player swings the hockey stick towards the puck, there is a contact push/pull interaction between the player and the stick. (2) During this interaction, energy is transferred from the hockey player to the stick, the player decreases his chemical potential energy, and the kinetic energy of the hockey stick increases. (3) Because the kinetic energy increases, the hockey stick speeds up as it gets closer to the puck.
This explanation is:.
A. Accurate as written.
B. Inaccurate because sentence
C. Inaccurate because sentence
D. Inaccurate because sentence
E. Inaccurate because more than one sentence is incorrect.
Answers: 3
Physics, 22.06.2019 01:30, ayalat9596
An object of dimensions 50 cm x 40 cm x 0.20 cm has a mass 60g. find its density in g/cm3 and kg/ m3
Answers: 1
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