Ball b, with a mass of 30kg, is moving to the left at 10 m/s. with what velocity should ball a, with a mass of 10kg, move to the right and collide with 2, so that ball a rebounds with a velocity of 30 m/s, and ball b with velocity of 10 m/s? assume the collison to be perfectly elastic.

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 speed of the cart after 3 seconds of low fan speed is ⇒ 54.0 cm/s.

the speed of the cart after 5 seconds of medium fan speed is ⇒ 120.0 cm/s.

the speed of the cart after 2 seconds of high fan speed is ⇒ 64.0 cm/s. 

just did the lab.