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(a) Calculate the rms speed of a carbon dioxide molecule at 20°C.
_______m/s
(b) Determine how many times per second it would move back and forth across a 7.0 m long room on the average, assuming it made very few collisions with other molecules.
________cycles/s
The pitch of the sound from a race car engine drops the musical interval of a fifth when it passes the spectators. How fast is the race car moving
The syringe must be heated to high temperatures to sterilize it. When the syringe is at its maximum temperature, what is the rms speed of the oxygen molecules
A 1.5 m long stick with a mass of 0.3 kg is pivoted on a hinge at one end and held horizontally by a spring with spring constant 10 N/m attached at the other end
A nuclear power plant operates at 75 % of its maximum theoretical (Carnot) efficiency between temperatures of 650 C and 310 C. how much exhaust heat is discharged per hour
How much birdseed would a 70.0 kg person have to eat in a day to consume proportionally as much birdseed as does a 0.0120 kg sedentary canary per day?
a cylindrical resistor of length l 2 cm is constructed from an inner cylindrical core of radius r1 3.0 mm made from
Staring from rest, a hoop rolls without slipping down a long ramp. What is its translational speed when it's 5.0 m below its initial height, determine the hoop's translational speed
Two 3.0-cm-diameter electrodes with a 0.15-mm-thick sheet of Teflon between them are attached to a 9.0V battery. What is the potential difference before the Teflon is removed
a 1.00-kg object is observed to accelerate at 10.0 ms2 in a direction 30.0 north of east. the force f2 acting on the
Three uniform meter sticks, each of mass , are placed on the floor as follows: stick 1 lies along the axis from = 0.290 m to = 1.29 m, compute the location of the center of mass of the meter sticks
A skier with a mass of 66.8 kg starts from rest and skis down an icy (frictionless) slope that has a length of 55.1 m at an angle of 26.2° with respect to the horizontal. find the speed of the skier at the bottom of the slope
Suppose the pear is released from a height of 6 m above Robin's arrow, the arrow is shot at a speed of 30 m/s and the distance between Robin and the base of the tower is 15 m.
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