How far above the horizon is the sun on the first day of summer?

What will be an ideal response?


On the first day of summer, the sun is at the latitude of the observer plus 23.4o at noon.

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If a crew of masons is needed to lay 1,000 concrete blocks, and the estimator determined that two masons could complete the job in one eight-hour day, what is the estimated productivity rate for block laying?

a. 125 blocks per hour b. 62.5 blocks per hour c. 31.25 blocks per hour d. 16 blocks per hour

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What three times of the year are ideal for optimal grass seed germination?

What will be an ideal response?

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If a service entrance is rated at 200 amperes, the service entrance conductor size would be a minimum of 2/0 copper or 4/0 aluminum. According to Table 250.102(C)(1) the minimum grounded conductor or bonding jumper size would be _____ AWG.

a. 1 b. 2 c. 3 d. 4

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Current in each part of a parallel circuit will always be the same

Indicate whether the statement is true or false

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