They have positive charge and are located in the nucleus with neutrons
When the moon is waxing it means that the sunlit fraction we can see from earth is getting larger. when it is wanning, the sunlit fraction is getting smaller and even as the phases of the moon change the total amount of sunlight the moon gets remains the same. half the moon is always in sunlight just as half the earth is always in sunlight. but because the period of rotation for the moon is the same as its period of revolution, on earth we always see the same side of the moon. If you lived on the far side of the moon, you would see the sun for half of each lunar day, but you would never see the earth.
Answer:
Explanation:
Given data:
0.1 L HCl × 1.020 mol/L = 0.102 mol HCL
0.05 L NaOH × 2.040 mol/L = 0.102 mol NaOH
NaOH + HCl \rightarrow H_2O + NaCl
0.102 mol HCl /1 mol HCl × 1 mol H2O = 0.102 mol H2O
0.102 mol H2O / 1 mol H2O × 57000 J = 5814 J
M(t)=150*1=150 g
we know that heat energy is given as
where c is specific heat
total energy released is = 57 \times 0.102 = 5.814 kJ
Answer:
The temperature of the Aluminium plate 44.84⁰C
Explanation:
Number of transistors = 4
Since the heat dissipated by each transistor is 12W
Total heat dissipated, Q = 4 * 12 = 48 W
Q = 48 W
Cross sectional Area of the Aluminium plate, A = 2(l * b)
l = Length of the aluminium plate = 22 cm = 0.22 m
b = width of the aluminium plate = 22 cm = 0.22 m
A =2( 0.22 * 0.22 )
A = 0.0968 m²
From the heat balance equation, Q = hAΔT
h = 25 W/m²·K
A = 0.0968 m²
ΔT = T - T(air)
T(air) = 25°C
ΔT = T - 25°C
Q = 25 * 0.0968 * ( T - 25)
Q = 2.42 (T - 25)
Substitute Q = 48 into the equation above
48 = 2.42 (T - 25)
T - 25 = 19.84
T = 25 + 19.84
T = 44.84 ⁰C
Answer:
I believe it would be E)none of the above.
Explanation:
