Answer:
C
Step-by-step explanation:
I must be right because the slope is a positive 2 and has a y intercept
Answer:
g = 4
Step-by-step explanation:
-7g - 2 = -30
Add 2 to both sides to get:
-7g -2+2 = -30+2
which is equal to:
-7g = -28
now divide both sides by -7 to get the value of g which is:
g = -28 / - 7
--> g = 4
Answer:
Line D or option C on edg
Step-by-step explanation:
Just took the pretest
Solution :
Given :
Height of the tower , h = 45 m
Weight of the weather vane, mg = 190 N
So the potential energy possessed by the weather vane is given by
E = m x g x h
where, E is potential energy
m is mass
g is acceleration due to gravity (taken as 10 m/s2)
h is height
Therefore,
E = m x g x h
E = (mg) x h
E = 190 x 45
E = 8550 J