Car A is traveling at 22.0 m/s and car B at 29.0 m/s. Car A is 300 m behind car B when the driver of car A accelerates his car with a uniform forward acceleration of 2.40 m/s2
How long after car A begins to accelerate does it take car A to overtake car B?
A) 12.6 s
B) 316 s
C) 5.50 s
D) 19.0 s
E) Car A never overtakes car B.
D
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Mass on a Spring: A 2.0-kg block on a frictionless table is connected to two springs whose opposite ends are fixed to walls, as shown in the figure. The springs have force constants (spring constants) k1 and k2. What is the oscillation angular frequency of the block if k1 = 7.6N/m and k2 = 5.0 N/m?
A. 2.5 rad/s B. 3.5 rad/s C. 0.40 rad/s D. 0.56 rad/s
Phase Angles: At 1.0 kHz, the phase angle of an RLC series circuit with a capacitive reactance of 40 ?, a resistance of 100 ?, and a certain inductor is 40°. What is the inductance in this circuit?
A. 12 mH B. 120 mH C. 210 mH D. 62 mH E. 20 mH
A pure substance A having density of 800 kg/m^3 (56 lbm/ft^3) is diffusing into a binary mixture of A and B. If the velocity of A is 4 cm/hr (1.2 in/hr) into the mixture and the velocity of B is 3.6 cm/hr out of the mixture, what is the total bulk velocity? Assume that the density of pure B is 900 kg/m3 (63 lbm/ft^3) and that the mixture density is 890 kg/m^3 (61 lbm/ft^3).
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What will be an ideal response?