A mouse is running away from a cat at 0.75 m/s and, at 1.25 m from his mouse hole, he accelerates at a constant rate of 0.25 
until he reaches his hole safely. How long a time was required for him to cover the last 1.25 m?
A. 1.4 s
B. 1.7 s
C. 1.2 s
D. 10 s
A. 1.4 s
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RC Circuits: A resistor, an uncharged capacitor, a dc voltage source, and an open switch are all connected in series. The switch is closed at time t = 0 s. Which one of the following is a correct statement about the circuit?
A. The capacitor charges to its maximum value in one time constant. B. The capacitor charges to its maximum value in two time constants. C. The potential difference across the resistor is always equal to the potential difference across the capacitor. D. Current flows through the circuit even after the capacitor is essentially fully charged. E. Once the capacitor is essentially fully charged, there is no current in the circuit.
We briefly accelerate an electron in the direction shown in the figure below. At which labeled point will the electromagnetic wave it generates have the greatest magnitude when it passes that point? 
A. A B. B C. C
The first eukarya appeared
A) 4.6 billion years ago B) around 3.5 billion years ago C) 4.0 billion years ago D) at least 2.1 billion years ago or perhaps even earlier
A monomer may be repeated many times in the formation of a chainlike molecule called a(n) ______________
Fill in the blank(s) with correct word