The Nasdaq composite fell sharply to its 50-day moving average, but the Dow Jones Industrial Average held up comparatively well in late-morning action Friday. Blue chips got help from gains of 1.5% to 2% for Chevron (CVX), Coca-Cola (KO) and Sherwin-Williams (SHW) on the stock market today. The Dow was down just 0.7% while the Nasdaq composite took the hardest…