Consider a cuboid particle whose dimensions are 50x30x10 µm. Calculate a) The volume diameter b) The surface area diameter c) The surface volume diameter d) The sieve diameter e) The projected area diameter

The tangential acceleration of an object A) represents the rate of change of the velocity vector's direction. B) represents the rate of change in the magnitude of the velocity. C) is a function of the radius of curvature. D) Both B and C.

Help with the questions: 1- Continuity tells us that whatever the volume of fluid in a pipe passing a particular point per second, the same volume must pass every other point in a second. The fluid is not accumulating or vanishing along the way. A) True B) False 2- When a fluid moves from a wider area of a pipe to a narrower one, its speed increases. A) True B) False 3- A fluid exerts a net upward force on any object it surrounds, called the buoyant force. A) True B) False

The figure shows a wooden model to reproduce a metal piece ofaluminum through the sand casting process.a) How much mass (g or kg) of aluminum do you need to melt?b) How much energy Q (Joules) is required? Assume an initial temperature of 50 ° C and a100% thermal efficiency.c) What dimensions will the final metal piece have? all is in cm

The beam whose support and loading condition is given,a) Draw the shear force diagramb) Show the bending moment diagram.c) Find the greatest shear force and greatest moment value.d) Find the shear force and moment at the midpoint of the beam. please solve carefully and in detail thank you.

You are designing a solar panel cover to protect rooftop solar panels from beingdamaged by debris.  At some point during the day, the panels form a 60-degree angle relative to the sun’s rays. The panels are 3m x 1m wide. a) What property of incident radiation do you want to maximize to allow the maximize amount of light to hit the panels below your cover? b) If the absorptivity is 0.2 and the reflectivity is 0.1, what percentage of the radiation reaches the solar panels? c) If the irradiation, G, is 220 W/m2, how much power passes into the solar panels below the cover?

Mechanical engineering １

C)never the truest Statement about Model Based Defintion or MOB is". In section views, hatch patterns should be drawn parallel tO one of the edges of the part. True! A) Yes, always c never B)ophonal