In a Test of Equipment the Following Procedure Is Carried

question 27

Multiple Choice

In a test of equipment the following procedure is carried out.Spacecraft №1 is traveling at 0.75c and fires a laser pulse in the forward direction at Spacecraft №2,which is testing its device that measures the speed of laser pulses as they pass by the spacecraft.Spacecraft №2 is traveling at 0.95c in a direction away from Spacecraft №1.The device is working properly,and the speed of the pulse as it passes is successfully measured.What is the speed of the laser pulse measured in this case?

• A)0.80c
• B)0.70c
• C)c
• D)This is a question that cannot be answered without knowing in which reference frames the speeds given in the problem.If you agree,then this is the answer that you should choose.

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Definitions:

Quantity Demanded

The overall volume of a good or service that customers are ready and financially able to acquire at a certain price point.

Price Floor

A government-imposed minimum price charged for a commodity, intended to ensure fair conditions for producers.

Equilibrium Price

Equilibrium price refers to the price point in the market where the amount of goods provided matches the amount of goods consumers want to buy.

Rent Control

Government-imposed limits on the amount landlords can charge for leasing residential properties, intended to make housing affordable.