Answer:
Inner planets are small because the heat of the Sun baked off the hydrogen. The outer planets are large because they were colder and did not get the hydrogen baked off. Among the outer planets, they get smaller as you get further out because they formed nearer the edge of the cloud that supplied the material. There was just less to build from.
Answer:
350 J
Explanation:
Q = Input heat of the steam engine = 2750 J
H = Heat energy given of to the surroundings = 1500 J
W = Work done by the system = 850 J
The energy which the system possesses is known as internal energy
Change in internal energy is given by
The change in internal energy of the system is 350 J
C, its not B because it can't be 0, it's not D because it needs a number infant, it can't be A because it's negative.
Answer:
When net force of zero acting on a ball which is at rest , then the object center of mass will not accelerate , but the object may begin to rotate .
Explanation:
Here when there is an object where several forces are acing upon are zero then the center of mass will not accelerate because we know that
Where acceleration of center of mass
= net force = 0
So the acceleration of center of mass will be zero
But the torque ,may not be zero as torque is product of individual force and perpendicular force .
Since if torque is not equal to zero then the object may begin to rotate
<u>Answer</u>
= 100 miles per hour.
<u>Explanation</u>
Velocity is the rate of change of displacement.
Velocity = Distance /time taken
= 500/5
= 100 mile per hour.