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Name the subtype of equilibrium (out of thermal, phase, mechanical and chemical equilibriums) that is at play in the following situations? A) Vapor floating over the surface of a lake on a cold winter morning. (4) B) Measuring the temperature of a sick person using a thermometer. (4) C) In a game of "tug of war", two teams pulling a rope with equal force in both the direction so that the rope remains still at one place. (4)
A 150 g aluminum cup contains 150 g of water and both are at 13 C. If you add 150 g of hot water at 90 C what is the final temperature at thermal equilibrium? How much hot water at 90 C needs to be added to achieve a final temperature of 44 C?
Two large, parallel, conducting plates are 26cm apart and have charges of equal magnitude and opposite sign on their facing surfaces. An electrostatic force of 2.8 x10-15 N acts on an electron placed anywhere between two plates.
What work is done by the electric forc. begin from rest, a boat increases its speed to 4.00 m/s with constant acceleration. What is the boat's average speed.
How much energy is given to the cell during this pulse. How many years would it take the earth to move 1.0 mm at this speed.
A very long solenoid with a circular cross section and radius r= 8.1cm with n= 1.90E+4 turns/m has a magnetic energy density uB= 5.70 mJ/m3. What is the current in solenoid.
A ship sets out to sail to a point 148 km due north. An unexpected storm blows the ship to a point 148 km due east of its starting point. (a) How far (in km) and (b) in what direction (as an angle from due east, where north of east is a positive angl..
A large wooden turntable in the shape of the flat disk has a radius of 2.00 {rm m} and a total mass of 120 {rm kg}. The turntable is initially rotating at 3 {rm rad}/{rm s} about a vertical axis through its center.
How much time would it take for her to emit a net radiant.
What is wavelength of the X-ray photon
A balloon with a radius of 14cm and an electric charge of 3.75x10^-9 C is brought within the electric field of the larger balloon so their centres are 40cm apart. find the magnitude of the electric force exerted by this electric field on the small..
Obtain an expression for the velocity
Occasionally, huge icebergs are found floating on the ocean's currents. Suppose one such iceberg is 134 km long, 39.4 km wide, and 187 m thick.
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