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Ring-no-answer. A common form of nonresponse in telephone surveys is "ringno-answer." That is, a call is made to an active number but no one answers. The Italian National Statistical Institute looked at nonresponse to a government survey of households in Italy during the periods January 1 to Easter and July 1 to August 31. All calls were made between 7 and 10 P.M. rate of no answers? Why? Explain why a high rate of nonresponse makes sample results less reliable.
The drag coefficient, D, for a spherical raindrop with a radius of 0.445cm falling at its terminal velocity is 1.74×10?5kg/m. Calculate the raindrop's terminal velocity in \rm m/s
A ball of mass 0.55 kg moves around a vertical circle of radius 1.2 m. Find the tension of the string T
A parallel-plate, air-gap capacitor has a capacitance of 0.15 ?F. The plates are 0.40 mm apart. What is the area of each plate
The thrust of a rocket is a gravitational force acting on the rocket the force of the exiting fuel gases on the rocket any force that is external to the rocket-fuel system a force that arises from the reduction in mass of the rocket-fuel system none ..
Find the number of revolutions that the wheel turns before it stops(and begins to turn in the opposite direction).
Horseshoe bats (genus Rhinolophus) emit sounds from their nostrils, then listen to the frequency of the sound reflected from their prey to determine the prey's speed. calculate the speed of the insect
An sub with a mass of 1800 kg is traveling eastbound at 17 m/swhile a compact car with mass of 900 kg is traveling westbound witha speed of 15 m/s the cars collide head-on becoming entangled.
What is the rms current in an RC circuit if R= 5.20 K? , C= 1.50 uF, and the rms applied voltage is 120 V at 60.0 Hz
suppose you look through a 3.7 mm thick window comprised of a material whose refractive index is 1.57.a by what time
Suppose the space shuttle is in orbit 460km from the Earth's surface, and circles the Earth about once every 93.80 minutes. Find the centripetal acceleration of the space shuttle in its orbit. Express your answer in terms of g, gravitational accelera..
A 1.7m -long barbell has a 21kg weight on its left end and a 32kg weight on its right end. What is the torque due to gravity about the left end of the bar
If the translation rms speed of the water vapor molecules in air is 703 m/s, what is the translational rms speed of the carbon dioxide molecules in the same air? Both gases are at the same temperature.
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