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In an echolocation lab, a student measures the time from the first click of the fingers to the first echo to be 0.0062. If the speed of sound in the room is 345 m/s, what should the student calculate for the length of the tube? (Note: This is not necessarily the same length tube you used in lab.)
A small button placed on a horizontal rotating platform with diameter 0.324m will revolve with the platform when it is brought up to a rotational speed of 42.0rev/min , provided the button is a distance no more than 0.142m from the axis. Part A Wh..
A proton is at the origin and an electron is at the point x=0.63nm, y=-0.45nm. Find the magnitude of electric force on the proton
At a particular instant a proton is traveling in the -y direction, with speed 4105 m/s. What is the magnitude of the magnetic force on the proton
A very large non conducting plate lying in the xy-plane carries a charge per unit areaof 6σ. A second such plate located at z = 5.00 cm and oriented parallel to the xy-plane carries a charge per unit areaof -3σ. Find the electric field for the fol..
A highway is to be built between two towns, one of which lies 30.0 km south and 83.0 km west of the other. What is the shortest length of highway that can be built between the two towns, and at what angle would this highway be directed?
The weight of the atmosphere above 1 m^2 of Earth's surface is about 100,000 N. Density of course, become less with altitude. But suppose the density of air were a constant 1.2 kg/m^3. Calculate where the top of the atmosphere would be.
q1. if the four-engine jet accelerates down the runway at 4 ms2 and one of the jet engines fails how much acceleration
Two narrow slits 55 micrometer apart are illuminated with light of wavelength 507nm. What is the angle of the bright fringe in degrees
An electron moves with a speed of 8.0x10^6 m/s along the +x axis. Calculate the magnitude of the magnectic force on the electron
Three liters (3000 cm3) of oil is spilled onto a smooth lake. If the oil spreads out uniformly until it makes a circular oil slick just one molecule thick, estimate the diameter of the oil slick
A canoe has a velocity of 0.37m/s southeast relative to the earth. The canoe is on a river that is flowing 0.47m/s, Find the magnitude of the velocity of the canoe relative to the river
a 40 x 10^3 kg train is travelling at 8.3m/s when the engineer sees a sheep on the tracks. she throws the emergenxy brakes on. How long is it before the rain will come to a complete stop
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