Physics, 05.10.2019 03:20 youngchapo813p8d9u1
Three students are having a conversation. it goes like this. allison says: "this problem says, can you add a resistor to the circuit so that the current provided to the circuit by the battery increases. how is that possible? for the current to increase, the overall resistance of the circuit has to decrease. doesn't adding a resistor always increase the resistance of the circuit? " nima says: "let's try putting the resistor in series with the other resistors. look, it doesn't matter where we put it, adding it in series always increases the resistance of the circuit, and that decreases the current." natasha says: "that's absolutely right. however, what if we placed the new resistor in parallel with one of the others. look, if we do that, the resistance of that part of the circuit goes down. that has to increase the current from the battery."which of the students are absolutely correct here?
Answers: 3
Physics, 21.06.2019 22:40, cookies1164
Ablock of mass m = 2.5 kg is attached to a spring with spring constant k = 710 n/m. it is initially at rest on an inclined plane that is at an angle of θ = 23° with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is μk = 0.19. in the initial position, where the spring is compressed by a distance of d = 0.16 m, the mass is at its lowest position and the spring is compressed the maximum amount. take the initial gravitational energy of the block as zero. a) what is the block's initial mechanical energy? b) if the spring pushes the block up the incline, what distance, l, in meters will the block travel before coming to rest? the spring remains attached to both the block and the fixed wall throughout its motion.
Answers: 3
Physics, 22.06.2019 22:00, emmacox069
Ais not a mixture. colloid compound suspension solution
Answers: 1
Three students are having a conversation. it goes like this. allison says: "this problem says, can...
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