gas from a bottle of compressed helium is used to inflate an inelastic flexible ballon. originally folded completely flat to a volume of 0.5m^2. if the barometer reading is 760mm Hg what is the amount of work done upon the atmosphere by the balloon​

The desk has a weight of 75 lb and a center of gravity at g. determine the initial acceleration of a desk when the man applies enough force f to overcome the static friction at a and b. also, find the vertical reactions on each of the two legs at a and at b. the coefficients of static and kinetic friction at a and b are ms = 0.5 and mk = 0.2, respectively

If an electric circuit is not grounded it is best to reach out and touch it to provide the ground a.true or b.false

When conducting an investigation to determine which type of fertilizer produces the most flowers on a plant, which variable would be graphed on the x-axis once you collected the data? a. type of fertilizer b. amount of flowers c. amount of water d. number of days that the plants grew