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A lumberjack (m= 98 kg) is standing at rest on one end of afloating log (m= 230 kg) that is also at rest. The lumberjackruns to the other end of the log, attaining a velocity of +3.6 m/srelative to the shore, and then hops onto an identical floating logthat is initally at rest. Neglect any friction and resistancebetween the logs and the water.
a- What is the velocity of the first log just before thelumberjack jumps off?
b- Determine the velocity of the second log if the lumberjackcomes to rest on it.
A pressure as low as P = 8 ? 10-11 Pa has been obtained. Suppose a chamber contains helium at this pressure and at room temperature, Estimate the mean free path
The amplitude of a system moving with simple harmonic motion is doubled. The total energy will the be:
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After completing the calculations below, sketch the pH curve for the titration of 25.0 mL of 0.200M solution of a weak acid, HA = (Ka = 6.0 x 10^-7), with 0.200M KOH. Indicate the pH at (a) the beginning of the titration
An FM radio station of frequency 96.7 MHz puts out a signal of 29900 W. How many photons per unit time are emitted
In a series LRC AC circuit, the resistance is 19 Ohm, the inductance is 21 mH, and the capacitance is 14 micro Farads. Calculate the max current in the circuit
A 7.00 uF capacitor is initially charged to a potential of 16.0V. What is the total energy stored in this circuit
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