Plant of a combined weight
A pot with a plant is hang from wires. What is the tension in each wire if the pot and the plant of a combined weight of 25 N and angle a is 40 deg. and angle b is 30 deg.
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What manner of inquiry did Rene Descartes advocate?
A small sphere with mass 2.20 hangs by a thread between two large parallel vertical plates 5.00 apart. The plates are insulating and have uniform surface charge densities. The charge on the sphere is = 9.80×10-6.
The maximum safe acceleration for passengers while stopping is about half of g. You know from years of reading books about trains that a typical train has a mass of 5E5 kg.
The influence of a constant net force of 35 000 N. What is the net force that acts on the plane's 80-kg pilot, assuming that he has the same acceleration as the plane.
What is the purpose of spearman rho formula?
An unknown number of moles of an ideal monoatomic gas expand reversibly from Vi = 2.90 m3 to Vf = 3.70 m3, at a constant pressure of 1.95 atm and an initial temperature of 300 K.
A 110 kg mail bag hangs by a vertical rope 4.0 m long. A postal worker then displaces the bag to a position 2.0 m sideways from its original position, always keeping the rope taut. As the bag is moved to this position, how much work is done by the
A lead bullet initially at 13.4oC melts just upon striking a target. Assuming that all of the initial kinetic energy of the bullet goes into the internal energy of the bullet to raise its temperature and melt it, calculate the speed of the bullet
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