The lobes of radio galaxies are perpendicular to their plane of rotation
Indicate whether the statement is true or false
TRUE
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The uncertainty principle can be used to relate the uncertainties in which two quantities?
A) position and momentum B) the force of gravity and the force of electromagnetism C) spin and charge D) position and spin E) mass and energy
Define and distinguish among the terms speed, velocity, and acceleration
What will be an ideal response?
This photo shows the famous Crab Nebula. What is it?
A) an expanding cloud of remains from a star that died in a supernova B) a classic example of a planetary nebula C) a star that is right now undergoing a supernova explosion D) a star forming cloud that will eventually give birth to hundreds of stars
An object is attached to a vertical spring and bobs up and down between points A and B. Where is the object located when its kinetic energy is a minimum?
A) at either A or B B) midway between A and B C) one-third of the way between A and B D) one-fourth of the way between A and B E) at none of the above points