Use Scientific Notation to Solve the Problem $7 \times 10 ^ { 13 }$

question 113

Multiple Choice

Use scientific notation to solve the problem.
-If you could generate energy by fusing the hydrogen in ordinary tap water, how much water would you need to meet the energy needs of the United States for 35 years? Assume that the energy Released by fusion of hydrogen in one liter of water is $7 \times 10 ^ { 13 }$ joules and that the U.S. annual Energy consumption i $1 \times 10 ^ { 20 }$ joules. Give your answer in scientific notation.

• A) \(5 \times 10 ^ { 7 }\) liters
• B) \(5 \times 10 ^ { - 7 }\) liters
• C) \(5 \times 10 ^ { 1.5 }\) liters
• D) \(1.4 \times 10 ^ { 7 }\) liters

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Definitions:

Amplitude

In physics, it refers to the maximum extent of a vibration or oscillation, measured from the position of equilibrium.

Brightness

The perception of light intensity, often described in terms of the amount of light emitted or reflected by an object.

Colour

The characteristic of visual perception described through categories with names such as red, blue, yellow, etc., primarily caused by the spectrum of light interacting with the photoreceptor cells of the eye.

Saturation

The intensity or purity of a color, indicating the absence of white light.