Discuss the boiling point and freezing point
What are the boiling point and freezing point of a 2.47m solution of naphthalene in benzene?( The boiling point and freezing point of benzene are 80.1 degree celsius and 5.5degree celsius, respectively.)
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A ball is tossed from an upper-story window of a building. The ball is given an initial velocity of 8.20 m/s at an angle of 21.0° below the horizontal. Find the height from which the ball was thrown.
The bead with charge q1 is at the origin. a third small, charged bead is free to slide on the rod. (a) At what position x is the third bead in equalibrium? (b) Can the equilibrium be stable?
A police car traveling at 101.7 km/h is traveling west, chasing a motorist traveling at 77.0 km/h. What is the velocity of the motorist relative to the police car?
A length of metal wire has a radius of 5. x 10^-3 m and a resistance of 0.1. When the potential difference across the wire is 11V, the electrond drift speed is found to be 3.17 x 10^-4. On the basis of these data, calculate the density of free ele
If the speedboat travels 58.4 km/h, in what direction should it head? Express the direction as a compass bearing with respect to due north.
What is the melting point of this substance? (Hint: first determine the resistance of the platinum resistance thermometer at room temp, 20C).
How does adding a small amount of a Grignard reagent solution to a Grignard reaction help the reaction get started? Hint: The presence of water (moisture) is a major reason a Grignard might not start.
An aluminum wire carrying a current of 4A has a cross-sectional area of 9e-06 m2. Find the drift speed of the electrons in the wire. The density of aluminum is 2.8g/cm3.
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