When the frequency of the source of a water wave increases, the distance between successive peaks in the wave increases
a. True
b. False
Indicate whether the statement is true or false
False
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A series LR circuit dissipates 60 W. The circuit is powered by a 120 V rms 60 Hz supply. If the current is 2.0 A rms, what is the power factor?
A. 0 B. 0.25 C. 0.50 D. 0.75 E. 1.0
An object of mass 4.00 kg is sitting at the top of an inclined plane of height h and angle ? with the horizontal. The object slides down the inclined plane and right before it reaches the bottom of the plane, it has speed of 16.0 m/s
Neglect friction and use g = 10.0 m/s2. (a) What is the height of the inclined plane? (b) If the height of the inclined plane is raised to 15.0 m, what is the speed of the object right before it reaches the bottom of the inclined plane?
If an object's speed is constant, its velocity must also be constant
a. True b. False Indicate whether the statement is true or false
A high-voltage transmission line of diameter 2 cm and length 150 km carries a steady current of 1 000 A. If the conductor is copper with a free charge density of 8 × 10^28 electrons/m3, how long does it take one electron to travel the full length of the cable? (e = 1.6 × 10^?19 C)
a. 6.0 × 10^2 s b. 6.0 × 10^4 s c. 6.0 × 10^6 s d. 6.0 × 10^8 s e. 6.0 × 10^–10 s