21 Lily investigates the containers of water shown below. Lily places container 1 in the middle of container 2 and measures the temperature of the
water in each container after 30 minutes.
Before
After 30 minutes
container 1: 30°C
container 2: 70°C
Which are the most likely temperatures after 30 minutes?
A. water in container 1: 70°C
water in container 2: 30°C
B. water in container 1: 50°C
water in container 2: 50°C
C. water in container 1: 40°C
water in container 2: 100°C
D. water in container 1: 22°C
water in container 2: 20°C

Lab reagent, hypothesis test.a reference solution used as a lab reagent is purported to have a concentration of 5 mg/dl. six samples are taken from this solution and the following concentrations are recorded: (5.32, 4.88, 5.10, 4.73, 5.15, 4.75) mg/dl.these six measurements are assumed to be an srs of all possible measurements from solution.they are also assumed to have a standard deviation of 0.2, a normal distributin, and a mean concentration equal to the true concentration of the solution.carry out a significance test to determine whether these six measurements provide reliable evidence that the true concentration of the solution is actually not 5 mg/dl.

Iwould appreciate if someone could me.

Avolleyball player hit a ball with a mass of 0.25 kg. the average acceleration of the ball is 15.5 m/s². how much force did the volleyball player apply to the ball? 62.0 n 3.87 n 62.0 m/s² 3.87 m/s²