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Consider two cubes of copper of side 1 cm. In each cube, assume that one out of million Cu atoms is Cu+ . Using Coulomb's law, calculate the force between the two cubes if they are placed at a distance of 10 cm.
Calculate the ionic strength and the activity coefficients of a 0.02 M solution of CaCl2.
in a spark ignition engine with compression ratio of 10 the lowest temperature is 200c and the lowest pressure is
A large tank of water is full and has a depth of 10.0 m. What is the pressure at the bottom of the tank? What would the velocity of the water be if the tank was opened at the bottom? A Two balloons of identical volume (radius 11.5 m) are filled with ..
Two rockets having the same acceleration start from rest, but rocket A travels for twice as much time as rocket B, If rocket A reaches a speed of 390m/s , what speed will rocket B reach
A spaceship travels at a speed of 0.90c to a star that is 9.0 ly away. what is the distance travelled during the trip
A 20 kg piece of steel pipe that is 20 cm in diameter, 80 cm long, What is its angular velocity and its total kintetic energy
Early in the morning, when the temperature is 5.0°C, gasoline is pumped into a car's 45 L steel gas tank until it is filled to the top. How much gasoline spills out in this case
A 0.4 kg tennis ball is dropped from rest at a height of 3.6 m onto a hard floor. Over what time does the force act in bringing the ball to rest
A 40 g block of ice is cooled to -75°C and is then added to 590 g of water in an 80 g copper calorimeter at a temperature of 23°C. Decide the final temperature of the system consisting of the water, ice, and calorimeter. Remember that the ice should ..
As you stand by a railroad track a train passes with its whistle blowing. Determine how fast is the train moving
A 1.0-cm-tall object is 7.5 cm in front of a diverging lens that has a 10 cm focal length. Determine the image height by making measurements on your diagram
A 94 g stone is whirled in a horizontal circle on the end of a 73 cm long string. The stone takes 1.10 s to make each complete revolution. Conclude the angle that the string makes with the horizontal.
The electric field of a sinusoidal electromagnetic wave obeys the equation , find the amplitude of the electric field of this wave
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