<u>The answer is not contained detail explanation, just a solution and the required values. </u>
All the details are in the pictures, the answers are marked with orange colour.
Note,
in the task no 20.:
V - the velocity of the pair of the balls after collision.
in the task no 21:
m₁ - the mass of the copper ball; m₂ - the mass of the copper calorimeter; m₃ - the mass of the water; t₀ - the initial temperature of water in the copper calorimeter; θ - the final temperature in the calorimeter after the copper ball is transferred into a copper calorimeter; t₁ - the required initial temperature of the copper ball before it is transferred into the calorimeter.
If you know the height of the ship while in calm water,you can subtract the height of the ship with aware at its peak point and it will tell yoi how tall the wave is.
Answer:
P1 = 2680 pa P2 = 4870pa
T1 = 273k T2 = T
From the ideal gas equation,
P1 / T1 = P2 / T2
2680 / 273 = 4870 / T
T = 4870 * 273 / 2860
T = 496.38 k
Kindly Mark Brainliest, Thanks
Answer:
A. <u>The water decreases the friction between the floor and the feet </u>
Explanation: Think about it like this, when your in the shower and water is on your skin, you can scrub it fluidly, but when the water dries in your towel, there is more friction when your rub your skin, this is because the molecules in water aren't as compact as solids, so anything acting against it, is most likely to disperse from it.