Coefficient of friction between clothes and earth
A 67.0 kg base runner begins his slide into second base when moving at a speed of 3.7 m/s. The coefficient of friction between his clothes and Earth is 0.70. He slides so that his speed is zero just as he reaches the base. How far does he slide?
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15.0 moles of gas are in a 8.00L tank at 24.6°C . Calculate the difference in pressure between methane and an ideal gas under these conditions. The van der Waals constants for methane are a=2.300L2⋅atm/mol2 and b=0.0430 L/mol.
What was the final temperature of the gold if the initial temperature was 22.0°C? The specific heat of gold is 0.129 J/(g·°C).
A carbon resistor is to be used as a thermometer. On a winter day when the temperature is 4.00, the resistance of the carbon resistor is 217.4 . What is the temperature on a spring day when the resistance is 215.8
A 47.0- person takes a nap in a backyard hammock. Both ropes supporting the hammock are at an angle of 16.0 above the horizontal. Find the tension in the ropes.
What is the elastic potential energy of the system when the 2.0-kg block is replaced by a 4.1-kg block?
An aqueous solution contains 10% ammonium by mass and has a density 0.99 gcm-3 . Calculate hydroxyl and hydrogen ion concentration in this solution. if Ka for ammonium ion = 5.0 x 10^-10.
If the simulation does not give a precise quantitative reflection of Graham's Law, what could be done to improve the quantitative estimate of the simulation?
List the major similarities and differences between the League of Nations and the United Nations. Which of those differences do you believe represent significant improvement? Why or why not? If so, what sort, and in which areas should impro
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