Explanation:it is beause they are sharper and also have less surface area and therefore more pressure
Answer:
both technicians
Explanation:
parts of a machine that move against themselves need to be lubricated to reduce friction and heating in the system.
since friction causes heating and wearing away of parts, it is important to lubricate them.
engine bearings move against themselves, because the teeth on one moves another
Answer:
7.15/2 = 3.575m
1.78cos(45.4) = 1.25m
radius = 3.575 + 1.25 = 4.825 m
mg of seat = 10 x 9.8 = 98 N
98/sin(45.4) = 137.64 N
Horizontal force = 137.64cos(45.4) = 96.64 N
Centripetal force = 96.64 N
96.64/10 = 9.6644 = ca
9.6644 x 4.825 = v^2 = 46.63, sq-root = v = 6.83 m/s
(10 + 28.3) x 9.8 = mg = 375.34 N
375.34/sin(45.4) = 527.14 N
Explanation:
Explanation:
Please attach the figure next to your question in order to help you.. Wish u the best and Have a great Day. Good Luck!