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Rus_ich [418]
3 years ago
10

Which state helps produce light in fluorescent light bulbs?

Physics
1 answer:
spin [16.1K]3 years ago
5 0
The answer is D plasma
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Siobhan wants to measure the mass of a bag of flour. What should she do?
I am Lyosha [343]
<span>Hey there!
Awesome question=)

Siobhan can place it on a regular scale(0 gravity area), or she can use the "balance scale"
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I hope this helps;)
7 0
4 years ago
Read 2 more answers
How much heat must be removed from 456 g of water at 25.0°C to change it into ice at - 10.0°C ? The specific heat of ice is 2090
cupoosta [38]

Answer:209.98 kJ

Explanation:

mass of water m=456 gm

Initial Temperature of Water T_i=25^{\circ}C

Final Temperature of water T_f=-10^{\circ}C

specific heat of ice c=2090 J/kg-K

Latent heat L=33.5\times 10^4 J/kg

specific heat of water c_{water}=4.184 KJ/kg-K

Heat require to convert water at T=25^{\circ}C to T=0^{\circ}C

Q_1=0.456\times 4.184\times (25-0)=47.69 kJ

Heat require to convert water at T=0^{\circ} to ice at T=0^{\circ}

Q_2=m\times L=0.456\times 33.5\times 10^4=152.76 kJ

heat require to convert ice at T=0^{\circ} C\ to\ T=-10^{\circ} C

Q_3=0.456\times 2090\times (0-(-10))=9.53 kJ

Total heat Q=Q_1+Q_2+Q_3

Q=47.69+152.76+9.53=209.98 kJ

7 0
3 years ago
B)
Vlad1618 [11]

Answer:

a) 16m/s b) 192m

Explanation:

v1=32m/s a=-2m/s^2 t=8s v2=? d=??

a) I will use this equation v2= v1 + a*t

v2= 32m/s + -2m/s^2 * 8s

v2= 32m/s + -16m/s

v2= 16m/s

b) v2^2=v1^2 + 2ad

rearranging

v2^2-v1^2=2ad

v2^2-v1^2/2= a d

v2^2-v1^2/2a=d

16m/s^2 - 32m/s^2/ 2 x-2m/s^2 =d

d=192m

5 0
3 years ago
If you ride an elevator moving forward with a constant speed, is your apparent weight same,greater than or less than your weight
wlad13 [49]
If the elevator's speed is constant (in ANY direction) and you can't see out of it, then there's NO measurement you can make inside that will tell you that it's moving. Any weight you measure is normal.
6 0
3 years ago
This is the second largest flightless bird and is also the best swimmer _________​
joja [24]

Answer:

Emu ...

Explanation:

.

.

#hope it helps you..

(◕ᴗ◕)

7 0
3 years ago
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