Physics, 19.07.2019 16:30 tytybruce2
In a two planet system, does an increase in planet velocity result in a decreased period? a. yes, the fast a planet is traveling, the more quickly it will circle the sun. c. no, the period remains constant b. yes, but only up to at very high velocities. d. no, if velocity becomes too great, the planet can escape the sun's gravitational pull.
Answers: 2
Physics, 22.06.2019 08:00
If the force applied to an object remains constant, is more power needed for the object to move faster ? explain
Answers: 3
Physics, 23.06.2019 06:30
Asquare isothermal chip is of width w=5 mm on a side and is mounted in a substrate such that its side and back surfaces are well insulated; the front surface is exposed to the flow of a coolant at tinf=15 °c. from reliability considerations, the chip temperature must not exceed t=85 °c. if the coolant is air and the corresponding convection coefficient is h=200 w/m2 x k, what is the maximum allowable "power" of the chip? if the coolant is a liquid for which h=3000 w/m2 x k, what is the maximum allowable power of the chip?
Answers: 2
Physics, 23.06.2019 08:30
Mary starts from her house, walks 80 meters south, and stops to chat with her aunt on the sidewalk. after chatting for a few minutes, she walks 125 meters to the west to meet a friend and then walks 45 meters north with her friend to a cafe for lunch. overall, she takes 10 minutes to do all this. what is mary’s average speed?
Answers: 1
In a two planet system, does an increase in planet velocity result in a decreased period? a. yes, t...
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