This preview shows page 1. Sign up to view the full content.
Unformatted text preview: e generator. The period of this microwave,
expressed in scientific notation, is b × 10–w s. The value of b is __________.
(Record your three-digit answer in the numerical-response section on the answer sheet.) Use the following information to answer the next question.
A student holds a compass near the top of a filing cabinet and observes the
direction that the needle points. When the student holds the compass near the
bottom of the filing cabinet, the student observes that the compass needle is
deflected 180° from its direction at the top of the cabinet. 21. A possible explanation for the deflection of the compass needle is that the
A. bottom of the filing cabinet is positively charged B.
C. bottom of the filing cabinet is negatively charged
induced magnetic polarity of the bottom of the filing cabinet is opposite
to that at the top of the filing cabinet
bottom of the filing cabinet is closer to Earth so it is more strongly
magnetized than the top of the filing cabinet D. Numerical Response
10. An ultraviolet source emits electromagnetic waves with a frequency of
2.47 × 1015 Hz. Its wavelength, expressed in scientific notation, is
b × 10–w m. The value of b is __________.
(Record your thre...
View Full Document
- Fall '09