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A harmonic oscillator has a mass of 0•20kg,an unknown spring constant, if the period is T=20. Find k
Matt is watching a jet take off when he hears the engine roar with an intensity of 100 W/m^2. At what minimum distance should Matt be, in order for him to not hear the jet?
An inclined plane is 100 m long and at an angle of 20 degrees * 10 * k * epsilon horizontal. The A*Lambda of the slope is two. Calculate: a) the effort required to push a 7200 N block up the slope b) the ideal mechanical advantage
c) the efficiency of the slope.
An inclined plane is 100 m long and at an angle of 20 degrees to the
horizontal. The AMA of the slope is two. Calculate:
a) the effort required to push a 72 underline C N block up the slope b) the ideal mechanical advantage c) the efficiency of the slope.
starting from maxwell's equations derive wave equation for a uniform plane wave travelling in free space.
You use 8,000 joules of energy climbing a hill. The climb takes you 50 seconds. How much power did you exert?
Consider a soot particle of mass msoot = 1.0 nanogram (=1.0 x 10-9 g = 1.0 x 10-12 kg), which corresponds to a diameter of a few microns. Some number of electrons have been added to give the particle a total charge qsoot, suppose the collector has a total charge of qcollector = 1.0 x 10-6 C and is small enough to be treated as a point charge at the rim of the smokestack. (a) if the separation between the collector and the soot particle is r = 0.10 m, what is the value of qsoot so that the electric force exerted on the particle is equal to its weight? (b) How many electrons must be added to the soot particle?
A watervpump lifts water from a level 10 m below the ground. Water is pumped at a rate of 30kg/minute with negligible velocity and friction. Calculate the minimum horsepower the engine should have for this? Use g=9.8 m/s^2
Determine the curl of F which is (∇ × F ) at the point (2, 0, 3) given that
F = ze2xy i + 2xz cosy j+ (x + 2y)k
We have a horizontal spring with a mass attached oscillating with a maximum displacement of A on either side. At which intermediate displacement(s) the kinetic energy would equal the potential energy
