Coefficient of kinetic friction between skier-snow
A skier slides horizontally along the snow for a distance of 23 m before coming to rest. The coefficient of kinetic friction between the skier and the snow is µk = 0.050. Initially, how fast was the skier going?
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A sample of helium has a volume of 325 mL and a pressure of 655 mm Hg. What will be the pressure if the helium is compressed to 125 mL (T constant)?
A 2.30 x 102-N force is pulling an 75.0-kg refrigerator across a horizontal surface. The force acts at an angle of 23.0° above the surface. The coefficient of kinetic friction is 0.200, and the refrigerator moves a distance of 6.00 m. Find the
How much work is done by the pushing force when the box starts from rest at the bottom and reaches the top of the same ramp with a speed of 1.50 m/s?
If the product is IO2- and the reactant isIO3-, calculate the change in the oxidation state of iodine (oxidation state of iodine in product minus the oxidation state of iodine in the reactant).
If the flow rate is to reach 200 m3/min when the channel is full, determine the minimum elevation difference across the channel.
Under the influence of its drive force, a snowmobile is moving at a constant velocity along a horizontal patch of snow. When the drive force is shut off, the snowmobile coasts to a halt. The snowmobile and its rider have a mass of 140 kg.
Determine the dimensions of the best cross section if the channel shape is (a) circular of diameter D, (b) rectangular of bottom width b, and (c) trapezoidal of bottom width b.
If the product is Rb+ and the reactant is Rb, calculate the change in the oxidation state of rubidium (oxidation state of rubidium in product minus the oxidation state of rubidium in the reactant).
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