1.)A vacuum flask keeps its contents warmer or cooler than the surrounding environment for a length of time. It consists of two flasks, one inside the other, that connect at the neck. the space between the two flasks is completely empty of air
answeres
why does the design of the vacuum flask reduce heat transfer by conduction
a.one flask is smaller than the other flask
b. one flask is more reflective than the other flask
c.there is no air between the flasks
d.the two flasks do not touch each other except at the kneck
plssss help
1.D
2.B
3.D
4.C
5.A
6.A
7.D
8.D
9.A
10.B
11.C
12.C
13.C
14.B
15.B
These are the right answer no cap. hope this helps :D
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I got 100% the answers are correct
yea she is right
thanks
I'm sure 15/15 = 100%
shes right 100
Are you sure she is right
Here answers. . .
1) D
2) B
3) D
4) C
5) A
6) A
7) D
8) D
9) A
10) B
11) C
12) C
13) C
14) B
15) B
thank you so munch
Thx @periodo got a 100%
PERIODO is 100% correct thx!
Science 6B 2021
3.11.4 Energy Unit Practice
1) D. The two flasks do not touch each other, except at the neck.
2) B. energy.
3) D. kinetic energy
4) C. chemical
5) A. 68.1 percent
6) A. chemical energy into thermal energy
7) D. mechanical energy.
8) D. D
9) A. mechanical energy into thermal energy.
10) B. both transfer heat through matter.
11) C. to increase friction
12) C. 14.5 J
13) C. changing the distance over which the input force was exerted.
14) B. convection.
15) B. a room cooled by minimizing heat transfer by radiation