A Doubly Charged Ion with Speed 6

question 91

Multiple Choice

A doubly charged ion with speed 6.9 × 10⁶ m/s enters a uniform 0.80-T magnetic field,traveling perpendicular to the field.Once in the field,it moves in a circular arc of radius 30 cm.What is the mass of this ion? (e = 1.60 × 10^-19C) .

• A)11 × 10^-27 kg
• B)6.7 × 10^-27 kg
• C)3.3 × 10^-27 kg
• D)8.2 × 10^-27 kg

Differentiate between potential and kinetic energy.

Recognize the importance of high-quality energy sources and their applications.

Understand the uses and importance of radioisotopes in various fields.

Recognize the characteristics of physical and chemical reactions, including energy changes.

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Definitions:

Conservatism

An accounting principle that dictates to recognize expenses and liabilities as soon as possible, but revenues and assets only when they are assured of being received.

Gross Profit Method

A technique used to estimate the amount of inventory a business has by applying the gross margin ratio to the cost of goods sold.

Fireproof Vault

A secure storage unit designed to protect contents from fire, typically used to safeguard valuable documents and items.

Grossprofit Ratio

A financial metric that measures the proportion of money left over from revenues after accounting for the cost of goods sold (COGS), expressed as a percentage of sales.