Answer:
Scale = 88 feet/5.5 inch = 16 ft/inch or 16 feet = 1 inch
Width = 76 feet x 1 inch/16 feet = 4.75 inches
Step-by-step explanation:
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Answer:
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Step-by-step explanation:
Answer:
Write an inequality that represents the condition based on the number of liters of air and water.
35A+25W>1000
and the following inequality represents the condition based on the number of Joules of energy:
0.8A+1.3W<170
Step-by-step explanation:
Answer:
Step-by-step explanation:
Answer:
(a) 218.6 N
(b) 97.14 N
Step-by-step explanation:
When the system is in equilibrium, the net torque on the system is zero.
AC = 1.5 m, CD = 2.3 m, DB = 5 - 1.5 - 2.3 = 1.2 m
Let the centre of gravity of plank is at G.
AG = 2.5 m, CG = 2.5 - 1.5 = 1 m, GB = 2.5 m
(a) Let the reaction at C is R and at D is R'.
R + R' = 29 x 9.8 = 284.2 N ... (1)
Take the torque about C.
29 x 9.8 x CG = R' x GD
29 x 9.8 x 1 = R' x 1.3
R' = 218.6 N
(b) Take the torque about D.
6 x 9.8 x AD = R x CD
6 x 9.8 x (1.5 + 2.3) = R x 2.3
R = 97.14 N
