Answer:
Explanation:
As the contour lines have roughly the same spacing but the actual topography is much steeper, the lines on the mountainous map represent a larger vertical spacing than the lines on the gradual hills.
Answer:
5.37 m/s
0.98 seconds
Explanation:
t = Time taken
u = Initial velocity
v = Final velocity
s = Displacement
a = Acceleration due to gravity = 9.81 m/s²

Velocity of the ball when it passes an observer sitting at a window is 5.37 m/s

Time taken by the ball to pass the observer sitting at a window is 0.98 seconds
Answer:
Both forces act along the line joining the objects like masses or charges. And both forces are inversely proportional to the square of the distance between the objects, this is known as the inverse-square law.
Explanation:
Wind power is the use of wind to provide the mechanical power through wind turbines & “Thermal” power plants convert heat into electricity using steam. Hydroelectricity is electricity made by generators that are pushed by the movement of water