Answer:
Step-by-step explanation:
Given the information, create the following augmented matrix:
The first order was for 1 tray of club sandwiches, at a cost of $9. The second-order, which cost $69, was for 5 trays of club sandwiches and 4 trays of vegetarian sandwiches.
Into an augmented matrix:
Solve.
Let x be the cost of a tray of club sandwiches.
Let y be the cost of a tray of vegetarian sandwiches.
Answer:
Θ =tan⁻¹ (4KQ²/mgr²), Q = r[mgtanΘπ∈₀]
Step-by-step explanation:
initially the angle Θ=0° ,the vertical forces were equal to product of mass and gravity(m*g) and there was no horizontal or lateral force in action. But after the displacement of balls new forces are induced.
X-Axis:
Fe = TsinΘ
[KQ²/(r/2)²] = TsinΘ where r₁=r/2, r₁ = new distance
(4KQ²/r²) = TsinΘ
Y-Axis
TcosΘ = mg
As we know that tanΘ=sinΘ/cosΘ
We have, tanΘ = 4KQ²/mgr²
By adjusting this equation and putting K=1/4π∈₀ we get,
Q = r[mgtanΘπ∈₀]
