Physics, 28.10.2020 15:10 chasitythompso1
A piece of pencil lead is connected in series with an ammeter and a power supply. The power supply is turned on. After a few minutes, although the potential difference across the pencil lead does not change, the current in the circuit increases significantly. Explain why the current increases.
Answers: 1
Physics, 22.06.2019 11:30
Arocket starts from rest and moves upward from the surface of the earth. for the first 10.0 s of its motion, the vertical acceleration of the rocket is given by ay = 12.80 m/s32t, where the +y-direction is upward. (a) what is the height of the rocket above the surface of the earth at t = 10.0 s? b) what is the speed of the rocket when it is 325 m above the surface of the earth?
Answers: 3
Physics, 22.06.2019 19:40
It may seem strange that the selected velocity does not depend on either the mass or the charge of the particle. (for example, would the velocity of a neutral particle be selected by passage through this device? ) the explanation of this is that the mass and the charge control the resolution of the device--particles with the wrong velocity will be accelerated away from the straight line and will not pass through the exit slit. if the acceleration depends strongly on the velocity, then particles with just slightly wrong velocities will feel a substantial transverse acceleration and will not exit the selector. because the acc
Answers: 1
Physics, 22.06.2019 23:40
Along wire of diameter 1 mm is submerged in an oil bath of temperature ∞ 31°c. the wire has an electrical resistance per unit length of 0.01 ω/m. if a current of 103 a flows through the wire and the convection coefficient is 500 w/m2·k, what is the steady-state temperature of the wire? from the time the current is applied, how long does it take for the wire to reach a temperature that is within 1°c of the steady-state value? the properties of the wire are 8000 kg/m3, 500 j/kg·k, and 20 w/m·k.
Answers: 3
A piece of pencil lead is connected in series with an ammeter and a power supply. The power supply i...
English, 08.09.2020 22:01
Business, 08.09.2020 22:01
Biology, 08.09.2020 22:01
English, 08.09.2020 22:01
Mathematics, 08.09.2020 22:01
Chemistry, 08.09.2020 22:01
Mathematics, 08.09.2020 22:01
Mathematics, 08.09.2020 22:01
Mathematics, 08.09.2020 22:01
English, 08.09.2020 22:01
Social Studies, 08.09.2020 22:01
History, 08.09.2020 22:01
History, 08.09.2020 22:01
Social Studies, 08.09.2020 22:01
Social Studies, 08.09.2020 22:01