The cook needs to make 100 hamburgers. The price of 9 hamburgers is 2 pounds. Then 22.2 pounds are needed to bring 100 hamburgers.
There are simple mathematics to find the price of a material based on the data we have on it. For example if we know the price of one unit of that material then multiply the price by the number of units we want to buy.
If know the price of a bulk or certain number of materials, then find the price of one material from it.
Here, the price of 9 hamburgers is given 2 pound. Then, the price of one hamburger is :
2/9 = 0.22.
Now, multiply the value of one hamburger with the number that we want. We want 100 hamburgers. Then,
100× 0.22 = 22.2 pounds.
Therefore, 22.2 pounds are needed for 100 hamburgers.
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reactivity
volume
shape
I believe that the correct answer is reactivity.
Given :
Vector A has a magnitude of 63 units and points west, while vector B has the same magnitude and points due south.
To Find :
The magnitude and direction of
a) A + B .
b) A - B.
Solution :
Let , direction in north is given by +j and east is given by +i .
So , and
Now , A + B is given by :
Direction of A+B is 45° north of west .
Also , for A-B :
Direction of A-B is 45° south of west .
( When two vector of same magnitude which are perpendicular to each other are added or subtracted the resultant is always 45° from each of them)
Hence , this is the required solution .
b. transferred
c. lost
d. created
Answer:
The recoil velocity vector of the cannon is
Explanation:
We can solve this problem by applying the Momentum Conservation Principle.
The principle of conservation of momentum states that when you have an isolated system with no external forces, we can use the following equation to calculate the final velocity of one object.
(I)
Where '''' and '''' are the mass and velocity of the first object.
And where '''' and '''' are the mass and velocity of the second object.
The momentum is a vectorial magnitude.
If we use the equation (I) with the data given :
If we considered as negative the sense of the velocity vector from the cannonball, the cannon's velocity vector will have the same direction but opposite sense that the cannonball's velocity vector (It will be positive).
We can give it a vectorial character like this :
The velocity vector will be entirely in the x-axis.
Answer:
7.61 m/s backwards
Explanation:
Initial momentum = final momentum
0 = (880 kg) v + (12.4 kg) (540 m/s)
v = -7.61 m/s
The cannon's recoil is 7.61 m/s backwards.