Question

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

Answer 1

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

Answer 2

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

Answer 3

yea she is right



thanks

Answer 4

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

Answer 5

I got 100% the answers are correct

Answer 6

shes right 100

Answer 7

thanks PERIODO

Answer 8

thank you so munch

Answer 9

Are you sure she is right

Answer 10

I'm sure 15/15 = 100%

Answer 11

Thx @periodo got a 100%

Answer 12

Is that a jojo reference

Answer 13

Whaaaa??????

Answer 14

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

Answer 15

PERIODO is 100% correct thx!

Answer 16

thanks lobit and PERIODO it helped a lot.

Answer 17

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

Answer 18

PERIODO is still correct in April 2021

Answer 19

periodo is still correct