Physics, 26.07.2020 01:01 saneayahsimmons
Which of the following scientists introduced the concept of absolute zero?
A. lord kelvin
B. edwin Hubble
C. jonhannes kelper
D. Albert Einstein
Answers: 1
Physics, 22.06.2019 21:20
An electron is ejected into a horizontal uniform e⃗ field at a parallel horizontal velocity of v0. assume the electron's initial position x0, initial velocity v0, time t, magnitude of electric field e, electron's mass m, and the magnitude of the electron's charge |e|. ignore the force that earth exerts on the electron. assume the e⃗ field is in the same direction as the initial velocity. part a define the equation for the electron's velocity. express your answer in terms of the variables v0, |e|, t, e, and m.
Answers: 3
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
Physics, 22.06.2019 23:40
Which type of energy is transferred by convection currents?
Answers: 2
Physics, 23.06.2019 00:00
Based on this activity, is kinetic energy always transformed into potential energy?
Answers: 1
Which of the following scientists introduced the concept of absolute zero?
A. lord kelvin
B....
B....
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