<qa>  What is ridaforolimus effect on the electrical activity of the heart?To assess the potential for ridaforolimus to prolong the QTc interval an effect on the electrical activity of the heart in participants with advanced cancer. This study will be done in 2 parts. Part 1 will evaluate the effect of a single 100 mg dose of ridaforolimus on QT interval in participants with advanced cancer. Fridericiass correction QTcF will be used. In Part 2 participants will receive ridaforolimus at the current therapeutic dose 40 mg x 5 days. 