The earths rotation makes the sky "move" and this rotates the view of the stars above.
This is a concept of momentum. In equation, momentum is the product of force and distance. When a ball is thrown, its force is constant all throughout unless disturbed by an external force. Therefore, force is the constant of proportionality that relates momentum with distance. When you block a ball from a given distance, you would feel the great force on your hand. In order to reduce the force, you have to follow the direction of the force in order to minimize the impact. By doing this, you gradually decrease the momentum of the ball.
<span>When air resistance acts, acceleration during a fall will be less than g because air resistance affects the motion of the falling objects by slowing it down. Air resistance depends on two important factors - the speed of the object and its surface area. Increasing the surface area of an object decreases its speed.</span>
Answer:
675 A
Explanation:
B = 1.5 x 10^-8 T
r = 9 km = 9000 m
Let the current be i
The formula for the magnetic filed due to a very long straight conductor is given by
i = 675 A
