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The pressure in a section of horizontal pipe with a diameter of 2.0 cm is 146 kPa. Water flows through the pipe at 2.80 L/s. Assume laminar nonviscous flow. If the pressure at a certain point is to be reduced to 103 kPa by constricting a section of the pipe, what should the diameter of the constricted section be?
cm
What is the sound intensity level. One on an Incline--One Hanging A block of mass mA = 4.50 kg on a frictionless inclined plane of angle 30.0° is connected by a cord over a massless, frictionless pulley to the second block of mass mB = 2.80 kg ha..
A 60 kg skier starts from rest at a height of H = 21 m above the end of the ski-jump ramp. As the skier leaves the ramp, his velocity makes an angle of 28° with the horizontal. avoid the effects of air resistance and assume the ramp is frictionles..
What must be the mass m2 of the hanging block if it is to descend 11.0m in the first 3.00s after the system is released from rest
On a day of 30 degrees celcius, full sun, how hot would a granite paver get? Will a dark grey one get much hotter than an off white coloured one.
How far from the dog would the suitcase land? You can ignore air resistance.
Three resistors, 19 ?, 60 ?, and 100 ?, are connected in series, and a 0.45-A current passes through them. find the potential difference across this equivalent resistance
Three deer, A, B, and C, are grazing in a field. Deer B is located 63.9 m from deer A at an angle of 51.4 ° north of west. What is the distance between deer A and C
The bunchberry flower has the fastest-moving parts ever seen in a plant.at first , the stamen are held by the petals in a bent position, storing elastic energy like a coiled spring.
While taking photographs in Death Valley on a day when the temperature is 52.0°C, What current does he register there if the temperature is -88.0°C
A shell of mass m and speed v explodes into two identical fragments. If the shell was moving horizontally (the positive x direction) with respect to Earth, and one of the fragments is subsequently moving vertically with speed v, find out the velocity..
A 2.00-g charged particle is released from rest in a region that has a uniform electric field = (160 N/C), Determine the charge of the particle
when free from rest from this spot, the particle arrives at B with twice the speed it previously had, or 2vB. Find the potential at B.
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