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The Cl-Cl bond energy is 242 kilo Joule /mole. What wavelength of electromagnetic radiation is necessary to break the bond? In what region of the spectrum does this wavelength appear?
A metal bar changes in length by 1 meter with a 150 degree C change in temperature. It's coeffieceint of linea expansion is 25 x 10^-6 per degree Celsius. what is the metal bar's original length?
What mass can it support in water before sinking. Two concentric spherical shells with uniformly distributed masses M1 = kg and M2 = kg are situated as shown . Find out the magnitude Find the magnitude of the net gravitational force on a particle ..
A distant galaxy emits light that has a wavelengthof 500.7 nm. On earth, the wavelength of this light ismeasured to be 503.7 nm. Find the speed of the galaxyrelative to the earth
question1imagine you are on a planet similar to earth where an acceleration of gravity is approximately 10 ms2.the
The radius of the path of an object moving in a circle at constant speed is halved. If the speed remains the same, the centripetal force needed is
When a car is traveling at 25 m/s on level ground, the stopping distance is found to be 22m. What is the stopping distance now, as measured along the incline
A 3m long cantilever with a mass of 250 kg is attached to a wall and also held in place with a steel cable that is attached to the far end of the cantilever at an angle of 30o with respect to the cantilever. A 5 kg mass too hangs from the far end of ..
A wave has an angular frequency of 110 rad/s, Calculate the angular wave number and the speed of the wave
RF power of 100 Watts is radiated is otropically in free space. Calculate the power density 3 km from the source. Making a local plane wave approximation, calculate the values of electric field and magnetic field that this corresponds to.
A boat's mast is held by two cables, one attached to the front of the ship and the other to the back. What is the force acting upwards on the mast exerted by the boat at the bottom of the mast
What is the gauge pressure in psi the next morning when the temperature is 44.6 F? Assume no volume change in the tires and no leaks.
a 120 g copper calorimeter cup contains 220 cm3 of water and 35 g of ice all in thermal equilibrium. a 185 g piece of
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