Answer:
The velocity just before hitting the ground is 
Explanation:
From the question we are told that
The initial speed is 
The final speed is 
From the equations of motion we have that
Where s is the distance travelled which is the height of the cliff
So making it the subject of the the formula we have that
Where a is the acceleration due to gravity with a value 
So
Now we are told that was through horizontally with a speed of
Which implies that this would be its velocity horizontally through out the motion
Now it final velocity vertically can be mathematically evaluated as
Substituting values
The resultant final velocity is mathematically evaluated as
Substituting values
Answer:
Explanation:
Given that
Mass of bowling ball M1=7.2kg
The radius of bowling ball r1=0.11m
Mass of billiard ball M2=0.38kg
The radius of the Billiard ball r2=0.028m
Gravitational constant
G=6.67×10^-11Nm²/kg²
The magnitude of their distance apart is given as
r=r1+r2
r=0.028+0.11
r=0.138m
Then, gravitational force is given as
F=GM1M2/r²
F=6.67×10^-11×7.2×0.38/0.138²
F=9.58×10^-9N
The force of attraction between the two balls is
F=9.58×10^-9N
Answer:
The correct answer would be B.
Explanation:
I believe the answer is B because for electrical energy you would need electric charges to be moved by kinetic energy.
ºC = K - 273
ºC = 600 - 273
T = 327ºC
Answer C
hope this helps!
<u><em>
Working of Electric Geyser:
</em></u><em>
simply in our homes ,, in electric geysers electric energy is converted into heat energy ,, when cold water enters into the geyser through inlet then it is heated into a container inside the geyser,,when it is heated connection of electricity is cut off inside the geyser,,
</em><em>then this hot water comes out through a outlet ... :)</em>
