A ball thrown upwards reaches a maximum height and then comes back down to the original level. As the ball is going downwards the velocity and acceleration both point down
a. True
b. False
Indicate whether the statement is true or false
True
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The broad emission lines of Seyfert galaxies imply high gas speeds in the nucleus
a. True b. False Indicate whether the statement is true or false
Rutherfordium-261 has a half-life of 1.08 min. What is the decay constant of rutherfordium?
A) 0.0107 s-1 B) 0.0154 s-1 C) 1.87 s-1 D) 2.91 s-1 E) 0.344 s-1
Special relativity says that c, the speed of light, is the maximum velocity for both matter and energy in our universe
Indicate whether the statement is true or false
What is the primary basis upon which we divide the ingredients of the solar nebula into four categories (hydrogen/helium; hydrogen compound; rock; metal)?
A) the temperatures at which various materials will condense from gaseous form to solid form B) the locations of various materials in the solar nebula C) the atomic mass numbers of various materials D) the amounts of energy required to ionize various materials