The horizon problem relates to the isotropy of the microwave background radiation
Indicate whether the statement is true or false
TRUE
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In an RLC series circuit, which of the following statements is true?
A. The current is in phase with the voltage across the inductor. B. The current is in phase with the voltage across the resistor. C. The current is in phase with the voltage across the capacitor. D. None of the choices are true.
Star A has an apparent visual magnitude of 6.3 and star B has an apparent visual magnitude of 5.3 . Star A is ____________________ times ____________________ than star B
Fill in the blank(s) with correct word
A walker walks 30 m from the origin toward the EAST to point A. She then walks from point A 20 m more toward the EAST to point B. The walker's total displacement form the origin is
A. 50 m toward the EAST. B. 30 m toward the WEST. C. 20 m toward the WEST. D. 10 m toward the EAST. E. 10 m toward the WEST.
The Earth's gravity exerts no torque on a satellite orbiting the Earth in an elliptical orbit. Compare the motion at the point nearest the Earth (perigee) to the motion at the point farthest from the Earth (apogee). At the point closest to the Earth:
a. the angular speed will be greatest although the linear speed will be the same. b. the speed will be greatest although the angular speed will be the same. c. the kinetic energy and angular momentum will both be greater. d. None of the above.