Magnetic fields are created by moving charged particles.
Answer the following statement true (T) or false (F)
True
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A 2.00 kg pendulum bob on a string 1.50 m long, is released with a velocity of 3.00 m/s when the support string makes an angle of 45.0 degrees with the vertical. What is the angle with the vertical the bob makes at the highest point of its motion?
A. 47.5 degrees B. 50.0 degrees C. 59.8 degrees D. 66.4 degrees E. 75.3 degrees
The rule for the interaction of magnetic poles is similar to the rule for electric
A) circuits. B) polarization. C) charges.
Suppose that a car traveling to the west (the -x direction) begins to slow down as it approaches a traffic light. Which statement concerning its acceleration in the x direction is correct?
A) Both its acceleration and its velocity are positive. B) Both its acceleration and its velocity are negative. C) Its acceleration is positive but its velocity is negative. D) Its acceleration is negative but its velocity is positive.
Which contains more atoms?
A) 1 kg of hydrogen B) 1 kg of iron C) both contain the same