subject
Physics, 15.01.2021 16:00 Avibx8x8

Please help me with this question. ill mark you brainlist or whatever you want.


Please help me with this question. ill mark you brainlist or whatever you want.

ansver
Answers: 3

Another question on Physics

question
Physics, 21.06.2019 17:20
Your 249 ml cup of coffee is too hot to drink when served at 82 degree celsius. what is the mass of an ice cube taken from a -21 degree celsius freezer, that will cool your coffee to a pleasant 54 degree celsius. specific heat of the water is 4190 j/kg c, specific heat of ice is 2090 j/kg c, heat of fusion of ice is 3.33 x 10^5 j/kg
Answers: 3
question
Physics, 22.06.2019 08:00
Who was the first scientist to measure speed as distance over time?
Answers: 1
question
Physics, 22.06.2019 22:30
The drag force, fd, imposed by the surrounding air on a vehicle moving with velocity v is given by fd = cdaρv 2/2 where cd is a constant called the drag coefficient, a is the projected frontal area of the vehicle, and ρ is the air density. an automobile is moving at v = 80 kilometers per hour with cd = 0.28, a = 2.3 m2, and ρ = 1.2 kg/m3.
Answers: 2
question
Physics, 23.06.2019 00:10
During cooling, the kinetic energy of the molecules falls. why does this happen? a.the motion of the molecules increases. b. the motion of the molecules slows down. c.the van der waals forces between molecules decrease d. the forces of attraction between the molecules are overcome.
Answers: 2
You know the right answer?
Please help me with this question. ill mark you brainlist or whatever you want.
...
Questions
Questions on the website: 13722367