A car starts from rest and accelerates with a constant acceleration of 1.00 m/s2 for 3.00 s. The car continues for 5.00 s at constant velocity. How far has the car traveled from its starting point?
A)
24.0 m
B)
9.00 m
C)
19.5 m
D)
4.50 m
E)
15.0 m
C
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A train traveling at 50. km/h approaches another train moving toward the first at 90. km/h. If they are 35. km apart (on a straight track) how long does it take before they meet?
A) 15. min B) 55. min C) 30. min D) 45. min E) 25. min
A constant electric field 
is present throughout a region of space that includes the plane bounded by the y and z axes and the lines y = 50 cm and z = 50 cm. The electric flux through the plane's surface, in N ? m2/C, is
A. 0. B. 0.25. C. 25. D. 50. E. 100.
Which of these does NOT depend on a close binary system to occur?
A) a nova B) a Type I supernova C) a Type II supernova D) All of these need mass transfer to occur. E) None of these depend on mass transfer.
Through what potential difference must an electron (starting from rest) be accelerated if it is to reach a speed of 3.0 × 107 m/s?
A. 5.8 kV B. 2.6 kV C. 7.1 kV D. 8.6 kV E. 5.1 kV