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This question involves the concept of the scalar product.
The magnitude of the scalar product will be "0".
<h3>SCALAR PRODUCT</h3>The scalar product, also known as the dot product of the two vectors is given by the following formula:
where,
- A.B = Scalar product = ?
- |A| = Mangnitude of vector A = 1 unit
- |B| = Magnitude of Vector B = 1 unit
- θ = Angle between vectors = 90°
Therefore,
A.B = 0
Learn more about scalar product here:
Answer:
The number of calories needed is 6c.
Explanation:
The amount of energy needed to raise the temperature
of water of mass
is
where is the specific heat capacity of water.
Putting in numbers into equation (1), we get:
which is the number of calories needed.