Answer:
The lens is a concave lens
Explanation:
In concave lens, the image formed is erect. diminished and virtual. The more the distance of the object from the mirror, the more diminished the image formed will be. Concave lens are used in binoculars and telescopes and are installed before or in the eye piece to enable a clear focus.
Answer:
Convection is the heat transfer due to the bulk movement of molecules within fluids such as gases and liquids, including molten rock. Condensation is the process by which water vapor in the air is changed into liquid water. Condensation is crucial to the water cycle because it is responsible for the formation of clouds. These clouds may produce precipitation, which is the primary route for water to return to the Earth's surface within the water cycle.
Explanation:
Their a difference....... A huge One
<span>Henry Moseley established a periodic table that arranges the elements by atomic number;The atomic number increases from left to right on the periodic table;Metalloids have the characteristics of both metals and nonmetals.</span>
(a) 423 J
The power of the battery is the ratio between the total energy stored (E) and the time elapsed (t):
However, the power is also the product of the voltage (V) and the current (I):
Linking the two equations together,
Since we know:
V = 9.0 V
We can calculate the total energy:
(b) 
dollars
The battery has a total energy of E = 423 J. (2)
1 Watt (W) is equal to 1 Joule (J) per second (s):
so 1 kW corresponds to 1000 J/s:
Multiplying both side by 1 hour (1 h):
and 
, so
So we find the conversion between kWh and Joules. So now we can convert the energy from Joules (2) into kWh:
And since the cost is $0.0660 per kilowatt-hour, the total cost will be
dollars
