(a) Find the buoyant force acting on the balloon, assuming the density of air is 1.29 kg/m3.  kN (b) What is the net force acting on the balloon and its instruments after the balloon is released from the ground?  kN (c) Why does the radius of the balloon tend to increase as it rises to higher altitude?

Answer it correctly. I need the right solution within 20-40min

The test tube opens at 293 K with 15 cm Hg at the bottom, and 7.5 cm of water above the Hg. Calculate the pressure at the bottom of the tube if the atmospheric pressure is 760 mm Hg. Use the density of 13:55 g / cm3 for Hg and 0998 g / cm3 to air.Berikan answers in terms of dyne / cm2,psia, and kN / m2 • (see conversion table). a. … KPa.   b. …  Dyne / cm2.  c. … Psia.

A 1m x 2m inclined plate is submerged as shown. The normal force acting on the upper surface of the plate due to the water (when taking atmospheric pressure into account) is most nearly (A) 68kN (B) 91kN (C) 203kN (D) 294kN Answer is 294kN please include explanation as it's important question.

A 1m x 2m inclined plate is submerged as shown. The normal force acting on the upper surface of the plate due to the water (when taking atmospheric pressure into account) is most nearly (A) 68kN (B) 91kN (C) 203kN (D) 294kN Answer is 294kN please write the complete solution in Handwritten format with FBD

what is the answer for number 3?