It is estimated that, on average, the earth is struck by lightning 100 times per ____.
A. second
B. minute
C. hour
D. day
Answer: A
You might also like to view...
Answer the following statement(s) true (T) or false (F)
1. With the ON delay timer, the delay in contact operation begins before the timer coil has been energized, or turned ON. 2. The basic pneumatic timing relay is designed so that additional instantaneous contacts may be added. 3. When a timer uses the format used by the Allen-Bradley timer, the preset time can be programmed with any value from 0 to 16,000. 4. The retentive timer lets the timer START and STOP without resetting the accumulated value to 0. 5. When circuit requirements demand more time than is available from a single timer, two or more timers can be programmed together.
The resulting phenotypic ratio of the cross of two heterozygotes would be 3:1
Indicate whether the statement is true or false
One hundred square feet of roof is called a ____.
A. patch B. plot C. square D. circle
The subsequent problems deal with the circuit below:
Note: Each question is independent and doesn't depend on results from previous questions. The only values known initially are the values provided in each question.If X=1 and R=1, and then R changes to 0, Z will be
A. 1 B. uncertain C. 0