How much nonconservative work was done on the surfer
Catching a wave, a 71 kg surfer starts with a speed of 1.3 m/s, drops through a height of 1.95 m, and ends with a speed of 8.2 m/s. How much nonconservative work was done on the surfer?
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The driving force for fluid flow is the pressure difference, and a pump operates by raising the pressure of a fluid (by converting the mechanical shaft work to flow energy). A gasoline pump is measured to consume 5.2 kW of electric power when oper
Two point charges are separated by 10.0 cm and have charges of +2.00 μC and -2.00 μC, respectively. Calculate the electric field at a point midway between the two charges. And calculate the electric potential at a point midway between the tw
Given that on a sunny day he arrives late, what is the probability that he took rout C? If he arrives late on a given day, what's the probability that it is a rainy day?
Two identifcal blocks with equal but opposite velocities collide and stick together. We know that they must be at rest after the collision. Why? What happened to their intial kinetic energy?
A 24 kg block slides with an initial speed of 14 m/s up a ramp inclined at an angle of 25o with the horizontal. The coefficient of kinetic friction between the block and the ramp is 0.6. Use energy conservation to find the distance along the incli
A 0.0188 g sample of a non-electrolyte isolated from throat lozenges was dissolved in enough water to make 10.0 mL of solution at 25 degrees celsius. The osmotic pressure of the resulting solution was 4.89 atm.
Two identical blocks made of extremely hard metal collide with equal and opposite velocities. Is such a collision closer to being completely inelastic?
The absorptivity often used in rapid determinations of protein concentration is the E^1%, based on aromatic amino acid absorbance at 280nm in a 1 cm pathlength. The E^1% employed for a mixture of proteins is 15.
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