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

19 answers

https://www.google.com/search?client=firefox-b-1-d&q=how+do+vacuum+flasks+work

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

yea she is right

thanks

i love how the users are PERIOD and that's on answers XD

I got 100% the answers are correct

shes right 100

thanks PERIODO

thank you so munch

Are you sure she is right

I'm sure 15/15 = 100%

Thx @periodo got a 100%

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Whaaaa??????

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

PERIODO is 100% correct thx!

thanks lobit and PERIODO it helped a lot.

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

PERIODO is still correct in April 2021

periodo is still correct