百度试题 结果1 题目What is the minimum safe distance a ship should maintain from a submarine when passing? A. 500 meters B. 1000 meters C. 1500 meters D. 2000 meters 相关知识点: 试题来源: 解析 B 反馈 收藏
As safety should always be the most important factor, the following is a list of the minimum distances you should be to safely observe wildlife in Wyoming (with data gleaned fromYellowstone National Parkand theUS Forest Service). Get our free mobile app REMINDER: these are the minimum distance...
While everyone on the road should (in theory) have a valid driving license, unfortunately, not everybody has the same level of skill behind the wheel. Nobody wants to be involved in a crash, so let’s look at one important aspect of driving – what is a safe following distance? Underst...
What is the minimum distance an open individual(aerial)overhead conductor can be to any building or structure, other than supporting poles or towers, before it is required to be insulated or covered? A.2ft(600mm) B.3ft(900mm) NEC: C.6ft(1....
The position of a particle gives the location of the particle with reference to the origin of the reference axis. The change in position is called the displacement. It is the minimum distance between the two point in a unique direction. The time rate of covering the...
The extinction ratio refers to the minimum ratio of the average optical power when the laser transmits all signal 1s (emits light) against the average optical power when the laser transmits all signal 0s (does not emit light) in complete modulation mode. Based on these two parameters, the ...
Before 802.11ax, the OFDM mode was used for data transmission, and users were distinguished based on time segments. In each time segment, one user occupied all subcarriers and sent a complete data packet, as shown in the following figure. Figure 1-3 OFDM working mode OFDMA is a more effic...
Within all UK safety guidance, the overriding directive is to eliminate risk wherever possible. But it’s sometimes essential to work within a live power environment. In these cases, defining the Arc Flash protection boundary through aFlash Studysets the minimum ‘safe’ distance from any live eq...
If 3 cars have traveled a total of 180,000 miles and the distance traveled by each car differs by at least 1 mile from the distance traveled by either of the other 2 cars,what is the minimum possible number of mile traveled by the car with most mileage?答案是60001 扫码下载作业帮搜索答疑...
They can be used with single-mode optical modules to implement long-distance transmission. Precautions for use of Optical Fibers The bend radius of optical fibers must be larger than the minimum bend radius allowed by the optical fibers. Otherwise, the optical fibers will be d...