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A Porsche 914 accelerates uniformly from 0 to 60 mph in5 s. Assuming a frictionless air track and a glider mass of 550 g, find the mass M2 that one must hang from the glider in order to obtain acceleration equal to that of the Porsche. Compare the estimated acceleration of the Porsche with the acceleration from V-2.
Freight trains can produce only relatively small acceleration and decelerations. How far will it travel in each case
two masses are joined together by a massless rod of length 0.8 m. What is the rotational kinetic energy of the system
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
you make a homemade capacitor out of two flat circular metal plates each of radius 5 cm and hold them a distance of 1
Given a spherical cell with outer radius R=6E-6 m, with thickness 5E-9 m. The potential difference across the membrane is -90 mV. Find potential energy stored within the membrane
A current with sinusoidal time-dependence, whose peak value is 6.55 A and frequency is 879 cycles per second, Calculate the average power dissipated by the loop
A 100-turn square wire coil of area 0.04m2 rotates about a vertical axis at 1500 rev/min, as indicated. The horizontal component of the Earth's magnetic field at the location of the loop is 2.0 × 10-5 T. compute the maximum emf induced in the coil..
A sound wave of frequency 171 Hz has an intensity of 3.29 ?W/m2. What is the amplitude of the air oscillations caused by this wave
a 2.2 kg ball is dropped from the roof of a building 130 m high. while the ball is falling to earth a horizontal wind
Place on magnet on a table and hold the other in your hand, well above the first. From directly above, slowly lower the upper magnet toward the first. Watch for the moment when the lower magnet jumps up to meet the upper. Separate the magnets and ..
An electron and a 140-g baseball are each traveling 200m/s measured to an accuracy of 0.095%, Calculate the uncertainty in position of the baseball
A parallel-plate capacitor in air has a plate separation of 1.35 cm and a plate area of 25.0 cm2. Determine the charge on the plates before and after immersion
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