What is the boiling point elevation constant for water
The boiling point of a 0.50 m NaCl solution is 100.50 C. What is the boiling point elevation constant for water, based on this result?
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Define potential difference. What is the difference between electric potential and electric potential energy? What is the unit for potential difference?
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The lifetime of a certain brand of electric light bulb is known to have a standard deviation of hours. Suppose that a random sample of bulbs of this brand has a mean lifetime of hours.
A pair of identical coils, each having a radius of 30 cm, are separated by a distance equal to their radii, that is, 30 cm. Called Helmholtz coils, they are coaxial and carry equal currents in directions such that their axial fields are in the sam
Hot combustion gases enter a gas turbine at 1 Mpa and 1500 k at a rate of 0.5 kg/s the gases exit at 0.2 MPA and 900 k if heat is input at 15 kj/s find the Carnot efficiency and the power of the gas turbine.
A space vehicle traveling at 4300 km/h relative to earth when the exhausted rocked motor (mass 4m) is disengaged and sent backward with a speed of 82 km/h relative to the command module (mas m). What is the speed of the command module relative to
Determine the horizontal force required (a) to start the car moving, (b) to keep the car moving at a constant speed. Neglect rolling resistance between the wheels and the rails.
A 5.20 g bullet of mass 10 g strikes a ballistic pendulum of mass 2. kg. The center of mass of the pendulum rises a vertical distance of 12 cm. Assuming that the bullet remains embedded in the pendulum, calculate the bullet's initial speed.
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