subject
Physics, 20.02.2021 14:10 klslaughter07

I'd like some help in these two questions please, thankyou so much. have a great day! stay safe and stay happy. (there are two parts of one question so uh yea.


I'd like some help in these two questions please, thankyou so much. have a great day! stay safe and

ansver
Answers: 1

Another question on Physics

question
Physics, 21.06.2019 16:30
Aball bearing at 220.0 °c is dropped into a cup containing 250.0 g of water at 20.0 °c. the water and ball bearing come to a temperature of 30.0 °c. what is the heat capacity of the ball bearing in j/°c? (hint: how are the algebraic signs of q related for the ball bearing and the water? )
Answers: 1
question
Physics, 21.06.2019 19:30
Agymnast dismounts off the uneven bars in a tuck position with a radius of 0.3m (assume she is a solid sphere) and an angular velocity of 2rev/s. during the dismount she stretches out into the straight position, with a length of 1.5m, (assume she is a uniform rod through the center) for her landing. the gymnast has a mass of 50kg. what is her angular velocity in the straight position?
Answers: 3
question
Physics, 21.06.2019 23:30
A175 g lump of molten lead at its melting point (327 c) is placed into 55.0 g of water at 20.0 c. the specific heat of lead is 130.j/kg c and the hf of lead is 20,400 j/kg. when the lead and the water have reached equilibrium, what is the temperature of the mixture?
Answers: 3
question
Physics, 22.06.2019 04:20
Astone is thrown into a pond. what happens to the amplitude of the resulting waves as they get farther from the point where the stone hit the water? explain.
Answers: 3
You know the right answer?
I'd like some help in these two questions please, thankyou so much. have a great day! stay safe and...
Questions
question
Mathematics, 18.11.2020 20:50
question
Spanish, 18.11.2020 20:50