A Spaceship Is Moving Away from an Asteroid with a Speed

question 28

Multiple Choice

A spaceship is moving away from an asteroid with a speed of 0.80c relative to the asteroid.The spaceship then fires a missile with a speed of 0.50c relative to the spaceship.What is the speed of the missile measured by astronauts on the asteroid if the missile is fired toward the asteroid?

• A)0.30c
• B)0.50c
• C)0.93c
• D)1.3c
• E)0.65c

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Definitions:

Direct Materials

Raw materials that can be directly traced to the manufacturing process of a product and are a significant portion of the production cost.

Gross Profit

The subtract of cost of goods sold from net sales, indicating the efficiency of a company in managing its production and labor costs.

Factory Overhead

Factory overhead encompasses all the indirect costs involved in manufacturing a product, which may include utilities, maintenance, and management salaries, excluding direct materials and labor costs.

Direct Labor Costs

The total cost of all the labor force that is directly involved in the production process, measured by wages, salaries, and benefits of those who actually work on the product directly.