Determine whether the given value is a statistic or a parameter. a homeowner measured the voltage supplied to his home on a random sample of 34 dayson a random sample of 34 days, and the average (mean) value is 136.4136.4 volts. choose the correct answer below.
a. the given value is a statisticstatistic for the yearyear because the data collected represent a populationpopulation.
b. the given value is a parameterparameter for the yearyear because the data collected represent a samplesample.
c. the given value is a statisticstatistic for the yearyear because the data collected represent a samplesample.
d. the given value is a parameterparameter for the yearyear because the data collected represent a populationpopulation.

A23 kg log of wood begins from rest, 300 m up a sluice (a water track used to transport logs, think of it as an inclined plane with negligible friction) inclined at 20° to the horizontal. after it reaches the flat waterway at the bottom it collides elastically with a 100 kg block of wood initially at rest near the base of the incline. (a) how long does it take the 23 kg log to travel down the incline? (b) what is the speed of the 23 kg log at the bottom of the incline? (c) what are the velocities of both blocks of wood after the collision? (d) what is the total kinetic energy before the collision? (e) what is the kinetic energy of the 23 kg log after the collision? (f) what is the kinetic energy of the 100 kg block of wood after the collision? (g) what is the total kinetic energy after the collision? (h) compare the total initial and total final kinetic energies. is this consistent with what you would expect for elastic collisions? explain!

What is the rate of 12 liters of water moving through a water hose in 4.0 minutes?

What pressure difference is required between the ends of a 2.0-m-long, 1.0-mm-diameter horizontal tube for 40 c water to flow through it at an average speed of 4.0 m/s?