Want to dry the wet leather with 61% water to have moisture to 6% by weight by feeding into a continuous tunnel dryer if the mass flow rate of the leather bleach is 250 kg / h and enter dry air at 60 c, pressure 1 atm into the drying oven at 55 c, pressure 1 atm, relative humidity 50%. calculate.
1. the rate of feeding the bleach into the drying tunnel
2. volumetric flow rate of dry air inlet, m ^ 3 / h

When an object falls through the air and encounters air resistance its overall speed will be than if it had not encountered air resistance? (one word answer)

Americium-241 undergoes fission to produce three neutrons per fission event. if a neutron-absorbing material is mixed in with this sample so that the rate of neutron production drops down to 1.8 neutrons per fission event, which will be effective at achieving a critical mass? check all that apply. remove a deflective shield surrounding the sample. remove absorbent material mixed in with the sample. compress the sample of americium-241.

Which sentence about particles in matter is true? a. atoms are present in solids and liquids but not in gases. b. the particles of matter are in constant motion. c. the same kinds of atoms are found in different elements. d. when a solid changes to a liquid, the sizes of the particles change.