Astronaut Hans Leaves Earth in a Spaceship Traveling at a Speed

question 1

Multiple Choice

Astronaut Hans leaves Earth in a spaceship traveling at a speed of 0.280c relative to the observer Brian at rest on Earth. Hans is holding a pencil at an angle of 30° with the direction of travel, as
Seen by Hans. What angle does the pencil make with the direction of travel, as seen by Brian on
Earth?

• A) \(29 ^ { \circ }\)
• B) \(33 ^ { \circ }\)
• C) \(90 ^ { \circ }\)
• D) \(30 ^ { \circ }\)
• E) \(31 ^ { \circ }\)

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Definitions:

Tandem-drive Trucks

Trucks equipped with two rear axles, both of which provide power to the wheels for increased traction and load capacity.

Toe Adjustment

The process of altering the angle at which wheels point inward or outward from a straight-ahead position, affecting tire wear and vehicle handling.

Camber

The attitude of a wheel assembly when viewed head-on from the front of the vehicle. A wheel that leans outward at the top (away from the vehicle) has positive camber; one that leans inward at the top has negative camber.

Neutralize

To make something ineffective by applying an opposite force or effect, often used in chemical and electrical contexts.