The atomic nuclei of the same element always have the same number of protons
Indicate whether the statement is true or false.
Answer: True.
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The force exerted on a body by moving air is proportional to the projected area of the body. Which falling body will have the larger terminal velocity, a flying squirrel with its wing membranes extended or a grey squirrel with the same mass?
A. Both will have same terminal velocity B. The flying squirrel C. The grey squirrel
A series LRC circuit consists of a 12.0-mH inductor, a 15.0-µF capacitor, a resistor, and a 110-V (rms) ac voltage source
If the impedance of this circuit is 45.0 ? at resonance, what is its impedance at a frequency twice the resonance frequency?
The acceleration of a ball as it rolls down a ramp is 4 m/s2 . The ball is referred to 2 s after it starts to roll. The velocity acquired after starting from rest is 8 m/s
Indicate whether the statement is true or false
If the temperature of a wire increases, its resistance
a. increases b. decreases c. does not change d. will increase or decrease depending on the composition e. will change in a way that can not be determined