An electromagnetic wave is created by
A. an electrical charge moving at a certain velocity.
B. all electric charges.
C. a magnetic moving with a certain velocity.
D. an accelerating electric charge.
D. an accelerating electric charge.
You might also like to view...
Which produces more force: driving into a very massive concrete wall with no "give," or having a head-on collision with an identical car moving toward you at the same speed?
A) car B) wall C) both the same D) need more information
A charge q = 3 × 10-6 C of mass m = 2 × 10-6 kg, and speed v = 5 × 106 m/s enters a uniform magnetic field. The mass experiences an acceleration a = 3 × 104 m/s2
What is the minimum magnetic field that would produce such an acceleration? A) 0.1 T B) 0.004 T C) 0.001 T D) 0.01 T E) 0.04 T
The center of gravity for each truck is marked X. Which truck(s) will tip over?
1) Truck 1 2) Truck 2 3) Truck 3 4) All will tip. This is because 5) its center of gravity is highest. 6) its center of gravity is lowest. 7) its center of gravity lies beyond a point of support. 8) all the centers of gravity lie above the wheelbases.
A 1000 
resistor is in a circuit with 30.0 mA flowing through it. A voltmeter with internal resistance 1000 
is used to measure the voltage across the resistor. What is the reading from the voltmeter if 30.0 mA still flows in the circuit?
A. 30.0 V B. 29.9 V C. 27.0 V D. 15.0 V E. 3.00 V