Answer:
The total number of charge pair without double counting is 6.
Explanation:
Given that,
Number of proton = 2
Number of electron = 2
We need to calculate the total number of charges in Hydrogen atom
Using formula for number of charges
Number of charge in pair is
We need to calculate the total number of possible combination of pairs without double counting
Using formula of combination
Where, n = number of charges
r = number of charges per pair
Put the value into the formula
Hence, The total number of charge pair without double counting is 6.
Answer
t = 367.77 s = 6.13 min
Explanation:
According to the law of conservation of energy:
where,
P = Electric Power of Heater = 300 W
t = time required = ?
m_g = mass of glass = 300 g = 0.3 kg
m_w = mass of water = 250 g = 0.25 kg
C_g = speicific heat of glass = 840 J/kg.°C
C_w = specific heatof water = 4184 J/kg.°C
ΔT_g = ΔT_w = Change in Temperature of Glass and water = 100°C - 15°C
ΔT_g = ΔT_w = 85°C
Therefore,
<u>t = 367.77 s = 6.13 min</u>
Answer:
True
Explanation:
Because everything usually has chemicals
Plz say it's false if i gave out the wrong answer
Answer:
prevents pollution, reduces the need to harvest new raw materials, saves energy, reduce greenhouse gas
Answer:
b
Explanation:
I'm not so sure but it makes sense
