Answer:
The direction in which a positive charge would move.
Explanation:
The direction of an electric current is by convention the direction in which a positive charge would move. Thus, the current in the external circuit is directed away from the positive terminal and toward the negative terminal of the battery. Electrons would actually move through the wires in the opposite direction.
Answer:
a) {[1.25 1.5 1.75 2.5 2.75]
[35 30 25 20 15] }
b) {[1.5 2 40]
[1.75 3 35]
[2.25 2 25]
[2.75 4 15]}
Explanation:
Matrix H: {[1.25 1.5 1.75 2 2.25 2.5 2.75]
[1 2 3 1 2 3 4]
[45 40 35 30 25 20 15]}
Its always important to get the dimensions of your matrix right. "Roman Columns" is the mental heuristic I use since a matrix is defined by its rows first and then its column such that a 2 X 5 matrix has 2 rows and 5 columns.
Next, it helps in the beginning to think of a matrix as a grid, labeling your rows with letters (A, B, C, ...) and your columns with numbers (1, 2, 3, ...).
For question a, we just want to take the elements A1, A2, A3, A6 and A7 from matrix H and make that the first row of matrix G. And then we will take the elements B3, B4, B5, B6 and B7 from matrix H as our second row in matrix G.
For question b, we will be taking columns from matrix H and making them rows in our matrix K. The second column of H looks like this:
{[1.5]
[2]
[40]}
Transposing this column will make our first row of K look like this:
{[1.5 2 40]}
Repeating for columns 3, 5 and 7 will give us the final matrix K as seen above.
Answer:
Chemical you bodily functions while you are jumping
Sound you feet hitting the ground and the jump rope smacking the ground
Mechanical is you jumping up and down and the jump rope spinning a constant direction
Explanation:
Answer:
44.27 m/s
Explanation:
Let's set the upwards direction to be positive and the downwards direction to be negative.
Since we do not know the final velocity of the ball right before it hits the ground, we will use our knowledge that the final velocity of the ball is 0 m/s right before it changes direction to fall back to the ground.
- a = -9.8 m/s²
- Δy = 100 ft
- v = 0 m/s
- v₀ = ?
Find what constant acceleration equation contains all four variables.
Substitute the known variables into the equation and solve for v₀, the initial velocity.
- (0)² = v₀² + 2(-9.8)(100)
- 0 = v₀² - 1960
- 1960 = v₀²
- v₀ = 14√10 = 44.27188724
The initial velocity of the ball 44.27 m/s.
<h2>
Volume of vehicle Assembly Building at the Kennedy Space Center in Florida = 3.67 x 10⁹ L</h2>
Explanation:
The Vehicle Assembly Building at the Kennedy Space Center in Florida has a volume of 3,666,500 m³.
Volume = 3,666,500 m³
1 m³ = 1000 L
So volume = 3,666,500 x 1000 = 3666500000 L
Volume of vehicle Assembly Building at the Kennedy Space Center in Florida = 3666500000 L
Volume of vehicle Assembly Building at the Kennedy Space Center in Florida = 3.67 x 10⁹ L
