Calculate the fraction of atoms in a sample
Calculate the fraction of atoms in a sample of argon gas at 380. K that has an energy of 15.0 kJ or greater.
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Your groceries are carried in a bag with paper handles. The handles tear off if the force on them is greater thatn 51 N. What is the greatest mass of groceries that can be safely placed if the bag is being lifted upwards with an acceleration of 1.
A small ferry boat is 4.00 m wide and 6.00 m long. When a loaded box pulls onto it, the boat sinks an additional 4.00 cm into the river. What is the weight of the box?
Find the total pressure for a mixture that contains four gases with partial pressures of 5.38 kPa, 4.52 kPa, 3.16 kPa, and 1.23 kPa.
An 11.0-g of NaCl is dissolved in 125 g of water, with both substance at 25.0'C. calculate the final temperature of the solution assuming no heat lost to the surrounding and assuming the solution has a specific heat capacity of 4.18J/'C g
Evaluate the vibrational partition function for NH3 at 1000 K for which the vibrationalfrequencies are 950, 1627.5 (doubly degenerate), 3335, and 3414 cm-1.
Obtain the phase angle between the current and the voltage across the resistor/capacitor combination.
Electrons are ejected from the metal surface with a velocity of 5.20 x 105 m/s. What is the threshold frequency of the metal?
A 35.00 mL sample of HNO3 solution is neutralized by exactly 42.63 mL of 0.4153 M KOH. What is the molarity of the HNO3 solution?
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If a child's achievement is below what would be expected given their level of intellectual functioning (as derived from an IQ test such as the WISC-IV)
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