Physics, 25.03.2020 21:44 Trinityslater
Consider two identical electric bulbs of power P and resistance R. You connect them to a battery of voltage V. The first time you connect them in series with each other, and the second time in parallel. How will the illumination of the connection in parallel compare with the connection in series?
a. 1/2 of the illumination of connection in series
b. 2X as much illumination as connection in series
c. 1/4 of the illumination of connection in series
d. The same illumination as connection in series
e. 4X greater illumination as connection in series
Answers: 2
Physics, 22.06.2019 16:50
During a medieval siege of a castle, the attacking army uses a trebuchet to hurl heavy stones at the castle walls. if the trebuchet launches the stones with a velocity of at an angle of 50.0°, (a) how long does it take the stone to hit the ground? (b) what is the maximum distance that the trebuchet can be from the castle wall to be in range? (c) how high will the stones go? show all your work.
Answers: 2
Physics, 22.06.2019 16:50
Acommercial refrigerator with refrigerant-134a as the working fluid is used to keep the refrigerated space at -35°c by rejecting waste heat to cooling water that enters the condenser at 18°c at a rate of 0.25 kg/s and leaves at 26°c. the refrigerant enters the condenser at 1.2 mpa and 50°c. if the compressor consumes 3.3 kw of power, determine (a) the mass flow rate of the refrigerant, (b) the refrigeration load, (c) the cop, and (d) the minimum power input to the compressor for the same refrigeration load.
Answers: 2
Physics, 22.06.2019 19:30
Aspacecraft that renters the earth’s atmosphere drastically slows down. the amount of kinetic energy the spacecraft has as it reenters the earths atmosphere
Answers: 2
Consider two identical electric bulbs of power P and resistance R. You connect them to a battery of...
Geography, 13.04.2020 10:26
Geography, 13.04.2020 10:26
English, 13.04.2020 10:27
Chemistry, 13.04.2020 10:27
Social Studies, 13.04.2020 10:27
Mathematics, 13.04.2020 10:27
Social Studies, 13.04.2020 10:27
Engineering, 13.04.2020 10:27
Mathematics, 13.04.2020 10:46
History, 13.04.2020 10:46
English, 13.04.2020 10:46