Answer:
The power developed by the 1st crane is twice the power developed by the 2nd crane.
Step-by-step explanation:
According to the question,
work done by both of the cranes are the same. Let it be W.
Then power developed by the first crane,
= unit -----------------(1)
and, the power developed by the 2nd crane,
= unit ------------------(2)
So, we get that,
So, the power developed by the 1st crane is twice the power developed by the 2nd crane.
Answer:
B
Step-by-step explanation:
The figure is a trapezium with area (A) calculated as
A = h (a + b)
where h is the perpendicular height and a, b the parallel bases
Here h = 8, a = 10 and b = 6, thus
A = × 8 × (10 + 6) = 4 × 16 = 64 cm² → B
Answer:
Step-by-step explanation:
8.
center=(3,3)
9. endpoints of a diameter=(0,3) and (6,3)
10.a point of tangency=(6,3)
11. (0,3) and (3,0)
12. endpoints of radius=(3,3) and (6,3)
im sorry cant help
Step-by-step explanation: