The answer is:
True
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<u>Answer</u>
The correct answer is B
<u>Explanation</u>
The side length opposite to the angle has length units.
The length of the hypotenuse is units.
We use the trigonometric ratio that involves the length of the opposite side and the hypotenuse, which is
This is the same as,
We take the sine inverse to obtain,
This evaluates to
Therefore the value of the angle is to the nearest tenth
Answer:
3. Usinθ
Explanation:
The vertical component of velocity of any object reaching maximum height is 0 and the horizontal component of velocity of any object in flight remains constant.
Therefore the horizontal component of velocity is Ucosθ for both objects at any given time.
At maximum height A is having 0 vertical velocity but B which just starting its flight is having Usinθ as its vetical component of velocity.
Velocity of B relative to A = Velocity of B - Velocity of A
As velocity can be resolved to components,( to simplify the sum )
Horizontal component of velocity of B relative to A = Horizontal component of velocity of B - Horizontal component of velocity of A
which is 3. <u>Usinθ</u>
Answer:
dmin = 1.4374in
Explanation:
In the question, it says slope at the support should not exceed the limit. When such a sentence is given always use the <u>maximum value of the property</u>. So here the maximum moment of inertia is used.
θ₁ = Pb(l² – b²)/6lEI
0.002 = 1000 x 8 x (142 - 82)/6 x 14 x 30 x 10⁶ x I₁
I₁ = 0.209523 in⁴
θ₂ = Pab(2l - b)/6lEI
0.002 = 1000 x 6 x 8 x (28 - 8)/6 x 14 x 30 x 10⁶ I2
I₂ = 0.190476 in⁴
<u>For design point of considerations, taking higher value of M.I, which is I₁</u>
I₁ = 0.209523 = (π/64) x d⁴
d⁴ = 4.2683
dmin = 1.4374in
To answer this problem, we can use the lower and upper limits altogether of the dimensions given. In this case, the minimum area is the product of 22.2 cm and 8.3 cm that is equal to 184.26 cm2 while the maximum area is equal to 22.6 cm times 8.5 cm equal to 192. 1 cm2. Plainly, 22.4 cm times 8.4 cm is equal to 188.16 cm2. The area is equal then to 188.16 +- 3.9 cm2