Physics, 16.09.2019 19:30 melissalopez12
Awoman riding a ski lift with a constant velocity of 2.1 m/s up to the top of the hill suddenly hears a loud noise. as she turns to see a fighter jet doing acrobatics involving sharp turns, she accidentally knocks her skis off the lift. in the moment afterwards, which two objects have the same inertial frame of reference?
a. the skier and her skis
b. the skier and the lift
c. the skis and the ground
d. the pilot and the jet
Answers: 1
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Aperson walks first at a constant speed of 4.89 m/s along a straight line from point a to point b and then back along the line from b to a at a constant speed of 2.95 m/s. what is the average speed over the entire trip?
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Physics, 22.06.2019 11:20
Suppose a diode consists of a cylindrical cathode with a radius of 6.200×10^−2 cm , mounted coaxially within a cylindrical anode with a radius of 0.5580 cm . the potential difference between the anode and cathode is 260 v . an electron leaves the surface of the cathode with zero initial speed (v initial=0). find its speed vfinal when it strikes the anode.
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Give an example of a collision in real life. use the law of conservation of energy to describe the transfer of momentum. be sure and discuss the momentum before and after the collision occurs. you will need at least 3 sentences to thoroughly answer this question.
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