Why Do Reflecting Telescopes Use Curved Mirrors Instead of Flat

question 40

Essay

Why do reflecting telescopes use curved mirrors instead of flat mirrors?

Understand the concept of mark-up on cost and selling price.

Calculate the rate of mark-up on cost and on selling price.

Understand and calculate the impact of markdowns on profitability.

Apply discounts and terms correctly to determine final payments.

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Definitions:

Excessive Vibration

An undesirable level of oscillations or movements in machinery or structures, which can cause damage or failure over time.

Active Material

Substances within a battery or electrochemical cell that directly participate in the electrochemical reactions during charge and discharge.

Sulfated Battery

A battery condition where lead sulfate crystals form on the battery’s electrodes, usually due to prolonged discharging, reducing its capacity and performance.

Freeze

A physical state transition where a liquid becomes a solid, typically when temperature drops below its freezing point.