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When the Earth scientist converts the alien’s measurement to rad/day, the answer has how many significant figures?

To predict the amplitude of the oscillation, we need to know which of the following quantities?

Which best represents the difference X – Z?

Which best represents the sum X + Y?

The next 3 questions refer to this data: An alien scientist made a measurement of the rotation of an asteroid many years ago. He measured a rotation rate of 2.355 abdegs/day. An Earth scientist wants to compare his measurements this year to those of the alien scientist. He knows that the aliens define a complete circle as having exactly 400 abdegs.

The term  ceteris  paribus means

Which puck will have the greater momentum upon reaching the finish line?

When the strings slip, as in the previous question, which of the following quantities of the stone in its motion remains the same?

Which best represents the sum X + Y + Z?

The next 3 questions refer to this scenario: Two children, a boy and a girl, are riding in a car with their mother. The girl is sitting in the back seat, and is securely fastened in her seat belt. The boy is sitting in the front seat, and is not wearing his seat belt. The car is moving at 25 mph on a straight road when the mother suddenly brakes to avoid hitting a dog that has run into the street. The car quickly comes to a stop, without swerving to either side.