Would water molecules in venus’ atmosphere, whose temperature is 740 k, escape into outer space? a water molecule has a mass that is 18 times that of a hydrogen atom. recall that gas eventually will escape if the average velocity of its atoms is greater than 1/6 times the escape velocity of the planet. the escape velocity of venus is 10 km/s.

The energy released by a chemical reaction can be measured using a calorimeter. when barium hydroxide octahydrate crystals are reacted with dry ammonium chloride inside of a coffee cup calorimeter, the temperature of the 18.00 g of water in the calorimeter decreases from 30.0°c to 8.0°c. the equation for calculating energy absorbed or released by a reaction is: where q is the energy released or absorbed, m is the mass of water in the calorimeter, cp is the specific heat of water, and δt is the observed temperature change. if the specific heat of liquid water is 4.19 j/g·°c, how much energy was absorbed by the reaction?

Aplane travels 1000 miles in 5 hours .what is the planes average speed?

Abucket full of water weights 4 kg and water well is 10m deep. a girl draws water from the well. it takes the girl 3 minutes to draw a bucket full of water from the well. what is the power of the girl?