Two Spaceships Are Traveling Through Space at Speeds of 0

question 3

Short Answer

Two spaceships are traveling through space at speeds of 0.600c and 0.900c, respectively,
with respect to Earth. If they are headed directly toward each other, what is their
approach speed (in terms of the speed of light) as measured by the captain of either ship?

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Definitions:

Ceramic Facings

Components made of ceramic material, used in various mechanical applications like clutch systems, for their durability and heat resistance.

Clutch Friction Facings

The material on the surface of a clutch disc that contacts the flywheel and pressure plate, providing the friction to transfer torque.

Clutch Pressure Plate

A crucial part of a vehicle's clutch system, responsible for applying pressure to the clutch disc to engage or disengage power from the engine to the drivetrain.

Thickness Gauge

A metal blade precisely finished to a defined thickness; used for measuring clearance and tolerance dimensions. Usually found in sets in which thickness graduates by 0.001-inch increments. Also known as feeler gauges.