[填空题]
Squaw Valley ski area in California claims bnrnijh /a-( o3.,m ios 5,lvgthhy77vwgap y 0+ zf4eph:o7y2qat its lifts can move 47,000 people per hour. If thep: e2p 4zq7y+h0gyaowh yf77v average lift carries people about 200 m (vertically) higher, estimate the power needed.$a\times10^b$ W a = b =