What distinguishes a nebula and a star is that a nebula is a cloud of gas and dust in outer space, visible in the night sky either as an indistinct bright patch or as a dark silhouette against other luminous matter. And a star is a<span> type of astronomical object consisting of a luminous spheroid of plasma held together by its own gravity.</span>
Answer: After one hour the distance will be 64 800 meters, after 1 minutes the distance will be 1080m, after 1 sec the distance will be 18m.
Explanation: Distance is speed multiplied by the time taken.
Using the standard formula V= d/t
Where v is a velocity,
D is a distance and
t is time.
We get use the formula to multiply the time taken by the velocity.
Explanation :
It is given that,
Side of square,
It is given that, the potential at point c is equal to zero.
So, potential at point a due to and is given as:
where,
So, (Since, is negative)
Hence, the potential at a due to and is equal to 0 V.
Answer:
14.7 m/sec.
Explanation:
We will go about using the mathematical formula,
Vf - Vo = gT.
To break it down,
Vf = Velocity of the apple just before hitting the ground.
Vo = Initial velocity of apple = 0
T = Time for apple to hit the ground = 1.5 sec
g = Acceleration due to gravity = 9.8 m/sec^2
We then need to substitute appropriate values,
<em>Vf - 0 = 9.8(1.5) </em>
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<em>Vf = 14.7 m/sec. </em>
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