Answer the following statement(s) true (T) or false (F)
A quanton really has a position at all times, but quantum mechanics does not allow us to predict that position with certainty at future times as we could in Newtonian mechanics
FALSE
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The event horizon
a. is believed to be a singularity. b. is a crystalline layer. c. has a radius equal to the Schwarzschild radius. d. marks the inner boundary of a planetary nebula. e. is located at the point where synchrotron radiation is created around a pulsar.
If you draw a spacetime diagram, how will the worldline of an object that is stationary in your reference frame appear?
A) vertical B) horizontal C) slanted D) curved E) a circle
How many times smaller are the tiniest particles that we know about than the size of the Earth?
A. about 1025 times smaller B. about 10 times smaller C. about 1000 times smaller D. about 100 million times smaller E. about 1 million times smaller
A 5-kg piece of lead (specific heat 0.03 cal/g×°C) having a temperature of 80°C is added to 500 g of water having a temperature of 20°C. What is the final equilibrium temperature (in °C) of the system?
a. 79 b. 26 c. 54 d. 34 e. 20