Calculate
3) i) mass of pile driver used to push the pile into the
ground - cam)
1) height of pile driver (2m)
m) pile material cam)
in shape at the based of the pile (2m)

a metal block with mass 50kg is being dropped onto a
ipile to build a tall building. the height of
metal block from the pile is 20m calculate
cm
i weight of metal block.
velodty of metal block just
770)
before it hits the pile
in
impulsive force acted on the pile if the time
impact is 50s.

Describe the function of the endomembrane system? what organelles are involved?

Is there a point between a 10 nc charge and a 20 nc charge at which the electric field is zero?

Asteel tube (k=50 w/mk) of inner and outer diameter di = 20mm and do=26mm, respectively, is used to transfer heat from hot gases flowing over the tube (h-hot = 200w/m2k) to cold water flowing through the tube (h-cold = 8000 w/m2k). what is the cold-side overall heat transfer coefficient uc? to enhance heat transfer 16 straight fins of rectangular profile are installed longitudinally along the outer surface of the tube. the fins are equally spaced around the circumference of the tube, each having a thickness of 2mm and a length of 15mm. what is the corresponding overall heat transfer coefficient uc? *solve for uc in both cases*