在某个雷雨天，一次雷电的放电电压为5×10⁸V，放电电流为1×10⁵A，放电时间为0.01s，这次闪电释放出______J的电能．

The holding power of an anchor is the（）.

A.maximum sustained vertical load an anchor will resist before dragging

B.maximum sustained horizontal load an anchor will resist before dragging

C.maximum sustained vertical load an anchor will resist before the mooring line breaks

D.maximum sustained horizontal load an anchor will resist before the mooring line breaks