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Show that the average energy of vibration decays according to the law : E= Eo × exp(-2bt).
a potential difference of 120 v produces a current of 8.0 a in the heating element of a toaster. what is the resistance
An airplane traveling at 9.90 multiplied by 102 km/h passes over a region where Earth's magnetic field is 4.0 multiplied by 10-5 T and is nearly vertical. What voltage is induced among the plane's wing tips, which are 75 m apart?
An ideal monatomic gas with 3.6mol undergoes a reversible increase in temperature from 380 K to445 K at constant volume. What is the entropy change of the gas
a fighter jet is launched from an aircraft carrier with the aid of its own engines and a steam-powered catapult. the
A 3.2 kg block of wood sits on a table. A 3g bullet, fired horizontally at a speed of 490 m/s, goes completely through the block, emerging at a speed of 250m/s. What is the speed of the block immediately after the bullet exits.
Consider an RC circuit in which the capacitor is beingcharged by a battery connected in the circuit. what percentage of the final charge is present on the capacitor
When a liquid and its vapor are in equilibrium, the rates of evaporation of the liquid and condensation of the vapor are equal. Compute the rate of evaporation of mercury into a vacuum
a string vibrates at its third-harmonic frequency. the amplitude at a point 30 cm from one end is half the maximum
Two point charges of equal magnitude are 7.3cm apart. At the midpoint of the line connecting them, their combined electric field has a magnitude of 40N/C . Find the magnitude of the charges.
A 230mW vertically polarized laser beam passes through a polarizing filter whose axis is 33? from horizontal. What is the power of the laser beam
When the effective interest rate is 12%, illustrate what is the market value of a 16%, 8-year, $1,000 bond that pays interest quarterly?
A 7.9-N force pulls horizontally on a 1.6-kg block that slides on a smooth horizontal surface. What is the acceleration of the blocks
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