Physics, 05.05.2020 18:45 clarawulf9477
A spring with an unstrained length of 0.070 m and a spring constant of 1.9 N/m hangs vertically downward from the ceiling. A uniform electric field directed upward fills the region containing the spring. A sphere with a mass of 5.8 × 10-3 kg and a net charge of +7.2 μC is attached to the lower end of the spring. The spring is released slowly, until it reaches equilibrium. The equilibrium length of the spring is 0.062 m. What is the magnitude of the external electric field?
Answers: 2
Physics, 22.06.2019 09:00
What is a possible result of higher air temperature caused by global warming
Answers: 1
Physics, 22.06.2019 10:30
Air is to be preheated by hot exhaust gases in a cross-flow heat exchanger before it enters the furnace. air enters the heat exchanger at 95 kpa and 20°c at a rate of 0.6 m^3/s. the combustion gases (cp = 1.10 kj/kg°c) enter at 160°c at a rate of 0.95 kg/s and leave at 95°c. determine the rate of heat transfer to the air and its outlet temperature.
Answers: 2
Physics, 22.06.2019 11:00
If angle "a" is 25°, angle "b" is: a) equal to angle c b) less than angle c c) greater than angle c
Answers: 1
A spring with an unstrained length of 0.070 m and a spring constant of 1.9 N/m hangs vertically down...
Mathematics, 25.02.2020 04:57
Mathematics, 25.02.2020 04:57