Physics, 11.03.2020 06:34 serenityarts123
A 1-m3 tank containing air at 25 o C and 500 kPa is connected through a valve to a second tank containing 5 kg of air at 35 o C and 200 kPa. When we open the valve we let the system to reach thermal equilibrium with the surroundings, which is at 20 o C.
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Name three different units of energy used to measure heat and describe what type of situations each is usually used.
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Physics, 22.06.2019 19:00
The particle p starts from rest at point a at time t = 0 and changes its speed thereafter at a constant rate of 2.8g as it follows the horizontal path shown. determine the magnitude and direction of its total acceleration (a) just before point b, (b) just after point b, and (c) as it passes point c. state your directions relative to the x-axis shown (ccw positive) and choose the angle with the smallest magnitude.
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Currents in dc transmission lines can be 100 a or higher. some people are concerned that the electromagnetic fields from such lines near their homes could pose health dangers. for a line that has current 150 a and a height of 8.0 m above the ground, what magnetic field does the line produce at ground level? express your answer in teslas and as a percentage of the earth’s magnetic field, which is 0.50 g. is this value cause for worry?
Answers: 1
A 1-m3 tank containing air at 25 o C and 500 kPa is connected through a valve to a second tank conta...
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