Spring hangs vertically next to a ruler
A spring with k = 51 N/m hangs vertically next to a ruler. The end of the spring is next to the 15 cm mark on the ruler. If a 2.9 kg mass is now attached to the end of the spring, where will the end of the spring line up with the ruler marks?
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What is the rate at which new cooking oil must be added to the vat so that there is always the same mass of oil in the vat at all times?
A 51.6-g golf ball is driven from the tee with an initial speed of 43.9 m/s and rises to a height of 25.4 m. (a) Neglect air resistance and determine the kinetic energy of the ball at its highest point. (b) What is its speed when it is 7.37 m belo
A projectile of mass 0.879 kg is shot straight up with an initial speed of 27.4 m/s. (a) How high would it go if there were no air resistance? (b) If the projectile rises to a maximum height of only 7.85 m, determine the magnitude of the average f
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Consider the reaction: CO2(g) + H2(g) -> CO(g) + H2O(g), for which Kc= 0.64 at 900K. If the initialconcentrations of CO2 and H2 are each 0.100 M, what will be the equilibrium concentrations of each species after the reaction reaches e
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A crane lifts a ball weighing 2 x 10^4 N by 40 m in 2 seconds. A) How much work against the force of gravity does the crane do on the ball?
The initial temperature of the plate and the cooling air temperature are 295 K when 300 W of power are switched on. 1) Find the plate temperature after 10 minutes, Find the steady temperature of the components.
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