The acceleration due to gravity on the moon is gm. Suppose an astronaut on the moon drops an object from a height of h. The time it would take the object to reach the moon’s surface would be tm. The same object is dropped from the same height on earth, where the acceleration due to gravity is ge. The time it takes the object to reach earth’s surface is Te. Required:
What is a correct mathematical relationship for the two times?.

Aresearch study is studying the effects of a new drug for osteoporosis alzheimer's disease (ad) for women above the age of 65 years. a group of individuals with osteoporosis is randomized into two groups. one group is treated conventionally, and the second group is treated with the new medication. assessments are made at 3, 6, 12, 36, and 48 months. the conventionally treated group is assessed for ad using a serum blood test, and the treatment group is assessed for ad using a pet radiotracer that binds to beta-amyloid plaques. in comparing these 2 trial arms, the authors of the study may encounter which type of bias? a. selection bias on the risk of developing b. measurement bias c. confounding bias d. recall bias e. lead-time bias