Knowing the initial velocity and angle, the horizontal range formula is given by R= V^2sin(2teta) / g, so we can get
sin(2teta)=Rg/V^2
sin(2teta)= (180 x 9.8)/ 80^2= 0.27, sin(2teta)=0.27, 2teta=arcsin(0.27)=15.66, so teta=15.66/2
teta=7.83°
Explanation:
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Hey there!
There's many ways to do it - like melting and evaporating.
For example, we'll use water. Plain old water in a water bottle. Right now, it's in its liquid state of matter, but say you put it in the freezer for an hour. That would change its state of matter to solid, since it would be solid ice. Now, if you were to put it out in the sun on a blazing hot day for a couple of hours, it would evaporate and become water vapor, a gas. Lastly, if you can cool that water vapor it becomes a liquid again.
Hope this helps!
The correct answer is A: H3PO4
Answer:
Part a)
Part b)
Part c)
%
Explanation:
Part a)
When voltmeter of 10 k ohm is used to measure the voltage across the given resistor then we will have
ohm
now the current through the given cell is
now voltage across 5 k ohm resistor is given as
Part b)
If there is not voltmeter connected across 5 k ohm
then current in the circuit is given as
Now voltage across 5 k ohm resistor
Part c)
percentage error in the reading is given as
%