A cord passes over a weightless and frictionless pulley
A cord passes over a weightless and frictionless pulley. Masses of 200 and 300 grams are attached to the ends of the cord. Find the distance the masses will move during the fifth second after they had started.
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What mass of sodium benzoate should be added to 140.0 mL of a 0.15 M benzoic acid solution in order to obtain a buffer with a pH of 4.25
The magnetic force per meter on a wire is measured to be only 27% of its maximum possible value.Calculate the angle between the wire and the magnetic field.
A car is driven 165 km west and then 95 km southwest. What is the displacement of the car from the point of origin (magnitude and direction)?
An inductor has an inductance of .082H. The voltage across the inductor is 18V and has a frequency of 190 Hz. What is the current in the inductor
A rubber ball of mass m falls straight down and bounces off the floor with equal incoming and outgoing speeds v. What is the magnitude of the impulse on the ball
This is question is about the Purification Via Chromatography lab: 1.) Briefly discuss the interactions involved in a TLC plate (silica gell and solvent system; adsorption versus solubility). How does variation in polarity of a solvent system affe
A woman pulls a loaded sled of mass m = 75 kg along a horizontal surface at constant velocity
A ball is moved from the origion to (1i + 4j) m, using a force (2i + 6j) N. Calculate the work done by the force
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Question: An old adage in psychology research methods courses is that "correlation does not prove causation".
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