The sum of the forces exerted on a 1000-kg car while it is slowing down from 30 m/s to 15.9 m/s is 9500 N. How far does it travel while slowing down?
A) 34 m
B) 31 m
C) 37 m
D) 41 m
A
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A charged capacitor is connected to an inductor. At time t = 0 the charge on the capacitor is Q = 6?C. At time t = 2 ms the charge on the capacitor is zero for the first time. What is the amplitude of the current at that same instant?
A) 2.38 mA B) 4.71 mA C) 0.78 mA D) 1.53 mA E) 1.19 mA
An RTG is
A. a type of bomb B. used in hospitals for power C. carried in pacemakers to supply power D. carried in satellites for power
Studies have shown that the ice located in the south pole of Mars is mostly ____
a. H2O b. NO2 c. CO2 d. O2 e. FeO2
According to current scientific estimates, when did the Big Bang occur?
A) about 4.5 billion years ago B) about 20 billion years ago C) about 65 million years ago D) about 14 billion years ago E) about 10 billion years ago