1. How many grams of a drug are there in 850 ml of a 1 in 130 w/v solution ? state andwer to 3 decimal places

What average mechanical power (in W) must a 76.5 kg mountain climber generate to climb to the summit of a hill of height 345 m in 43.0 min? Note: Due to inefficiencies in converting chemical energy to mechanical energy, the amount calculated here is only a fraction of the power that must be produced by the climber's body.

The half-life of Palladium-100 is 4 days. After 20 days a sample of Palladium-100 has been reduced to a mass of 4 mg. What was the initial mass (in mg) of the sample? What is the mass 6 weeks after the start?

6. Find NL. MU=48 J 42 10 L M13