Answer:
24?
Step-by-step explanation:
If you add 20, 22, and 24, you get 66. I dont know if this helped.
Y=1 because on each equation it needs 1 for it to be the answer
The third one.... is obtuse because it is greater than a 90 degree angle , which is a right angle
Answer:
Answer:
safe speed for the larger radius track u= √2 v
Explanation:
The sum of the forces on either side is the same, the only difference is the radius of curvature and speed.
Also given that r_1= smaller radius
r_2= larger radius curve
r_2= 2r_1..............i
let u be the speed of larger radius curve
now, \sum F = \frac{mv^2}{r_1} =\frac{mu^2}{r_2}∑F=
r
1
mv
2
=
r
2
mu
2
................ii
form i and ii we can write
v^2= \frac{1}{2} u^2v
2
=
2
1
u
2
⇒u= √2 v
therefore, safe speed for the larger radius track u= √2 v
Answer:
x = 9
Step-by-step explanation:
Area of a rectangle = lw
To find the length you divide 45 by 5 to get 9 because,
45 = 5 x 9
