The first active volcano observed outside the earth was discovered in 1979 on io, one of the moons of jupiter. suppose a volcano
1 answer:
Gravitation due to the planet's mass is always against the ejected particle velocity. This will result in deceleration of the ejected particle and eventually bring the velocity to zero at the topmost point of the trajectory before pulling it back to the ground.
By the kinematic equation
where s is the distance travelled = 1.52 x 10^5 m
a is the acceleration due to gravity = -1.91 m/s^2
v and u are initial and final velocities, so v = 0.
Therefore
u = 761.99 m/s
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Explanation:
Since, it is mentioned the there occurs no change in the temperature. This also means that there will occur no change in thermal energy of the system.
Hence, = 0. And, as
= 0 then there will be no work involved. This means that total energy added to the house will return to the outside air as heat.
Therefore,
Q = -(19000 J + 2000 J)
= -21000 J
or, |Q| = 21000 J
Thus, we can conclude that the magnitude of the energy transfer between the house and the outside air is 21000 J.