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While waiting for your plane to take off, you suspend your keys from a thread and set the resulting pendulum oscillating. It completes precisely 88 cycles in 1 minute. You repeat the experiment as the plane accelerates down the runway, and now find the pendulum completes exactly 92 cycles in 1 minute. Discover the plane's acceleration.
A stone is dropped from the top of a cliff at t=0. The splash it makes when striking the water below is heard 6 seconds after it is dropped (i.e. at t=6 sec). How high is the cliff? (i.e. find 'h') suppose that the speed of sound in air is 340m/s ..
a particle is traveling along an arc of 6.5-in radius. the arc is the origin of a coordinate system. when the particle
A 71-kilogram person stands on a bathroom scale in an elevator. Find what does the scale read if the elevator is ascending with an acceleration of 3.0 m/s2
A horizontal vinyl record of mass 0.10kg and radius 0.10 m rotates freely about a vertical axis through its center with a rotational speed of 5.10 rad/s.
light of wavelength 610nm is incident on a slit of width .20mm and in interference pattern is produced on a screen that is 1.5m from the slit. what is the width of the central bright fringe
a small object of mass 2.40 g and charge -15 microc floats in a uniform electric field. what is the magnitude and
Find the total work done on the car
One afternoon, a couple walks three-fourths of the way around a circular lake, the radius of which is 1.46 km. What is the magnitude of the couple's displacement
In an experiment the speed of sound in air, a student a measures a column of air in a resonance tube. find the speed of sound in the room
A series RLC circuit has R= 50, L= 2.7 H, and C= 52 nF. It is connected to an AC voltage source with an rms amplitude of 12 V, find the average power dissipated by the circuit
a single conservative force 8.0 x 10-12 n where x is in meters acts on a particle moving along an x axis. the
Calculate the change in internal energy when 1 mole of liquid water at 1atm and 100 degrees C is evaporated to water vapor at the same pressure and temperature, given that the molar volumes of the liquid and the vapor at these conditions are 18.8 cm^..
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