Physics, 18.01.2020 04:31 Taylor73836
An ice hockey puck of mass 170 g enters the goal with a momentum of < 0,0, -6.6 > kg·m/s, crossing the goal line at location < 0,0, -29 > m relative to an origin in the center of the rink. the puck had been hit by a player 0.4 s before reaching the goal. what was the location of the puck when it was hit by the player, assuming negligible friction between the puck and the ice? (note that the ice surface lies in the xz plane. express your answer in vector form.)
Answers: 2
Physics, 22.06.2019 00:00
Explain to someone who knows nothing about fossils the study of invertebrate paleontology and how it scientists understand the history of the earth. be sure your explanation contains a minimum of two complete sentences.
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Physics, 22.06.2019 16:30
Large electric fields in cell membranes cause ions to move through the cell wall. the field strength in a typical membrane is 1.0 x 10 7 n/c. what is the magnitude of the force on a calcium ion with charge +e? what is its acceleration? is it possible for a particle with the same charge as as calcium to have a different acceleration if placed at this location? what would change the acceleration: mass of the particle? diameter of the particle?
Answers: 2
Physics, 22.06.2019 21:50
Which of the following is part of the explanation or description of electromagnetic waves? (select all that apply) a. electrically charged molecules in a medium transfer their energy to nearby electrically charged molecules. b. a changing electric field causes a changing magnetic field. c. magnetic molecules in a medium transfer their energy to nearby magnetic molecules. d. a changing magnetic field causes a changing electric field.
Answers: 3
An ice hockey puck of mass 170 g enters the goal with a momentum of < 0,0, -6.6 > kg·m/s, cr...
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