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Calculate the enthalpy change for the reaction,
The average Xe - F bond energy is 34 kcal/mol, first I.E. of Xe is 279 kcal/mol, electron affinity of F is 85 kcal/ mol and bond dissociation energy of F2 is 38 kcal/mol.
Two resistors (connected in series with each other) and a 10 Vbattery are connected in a loop. The voltage drop across the first resistor is 2 V. What is the voltage drop across the second resistor?
A hand grenade (m=580g) slides across the (essentially frictionless) floor at a speed of 0.86 m/s. determine the speed of the second fragment
The sound travels through the left tube LXM, which has a fixed length. Concurrently, the sound travels through the right tube LYM, length of which can be changed by moving the sliding section
a si sample is doped with arsenic impurities at a concentration of 1017 cm-3. calculate the intrinsic electron
Astronomers can detect extrasolar planets by observing the slightwobble of stars due to the gravitational forces between the starsand the planets. The Sun wobbles about the center of mass of the solar system
a stone is thrown horizontally with an initial speed of 10 ms from the edge of a cliff. a stop watch measures the
Suppose the three resistors in the circuit have the values of R1=180 ohms, R2=300ohms, and R3=450 ohms, and that the emf of thebattery is 12.0 V.
Disk A, with a mass of 6.0kg and a radius of 30cm , rotates clockwise about a frictionless vertical axle at 10rev/s . Disk B, also 6.0kg but with a radius of 20cm , what is their common angular speed
a. a 7-ohm resistor has a potential difference of 12 v across it. what current flows through the resistor?b. what is
a contact lens is made of plastic with an index of refraction of 1.36. the lens has an outer radius of curvature of
A particularly beautiful note reaching your ear from a rare Stradivarius violin has a wavelength of 39.1 cm. how long is the vibrating section of the violin string
A motorist drives along a straight road at a constant speed of 21.5 m/s. Just as she passes a parked motorcycle police officer, the officer starts to accelerate at 4.00 m/s2 to overtake her. Assume that the officer maintains this acceleration. Decide..
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