Auniform wire with mass m and length l is bent into a semicircle. a. find the magnitude of the gravitational force this wire exerts on a point with mass m placed at the center of curvature of the semicircle.

c, 1a hope this

when cloud cover increases then the suns ray's which provides the earth with light and warmth gets covered due to the due to the suns ray's being blocked, the temperature in that region

therefore to conclude i would like to say that,

=more the cloud cover, the lesser the

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the answer is the first electromagnet (a). this is because it has more coils around the ferromagnetic material. increasing the number of coils increases the surface area in which the metal interacts with the current in the coil. this enables more atoms in the metal to become aligned hence becoming more magnetized.

friction

explanation:

they us to move forward and backwards