You throw a ball straight up with an initial velocity of 14.1 m/s. It passes a tree branch on the way up at a height of 7.00 m. What is the velocity (in m/s) of the ball when it hits the tree for the second time?

hi,

what occurs during a solar eclipse?

there are small tides across earth.

the moon is between earth and the sun.

p.s. im not sure if the first answer is correct because during a solar ecliphse there are spring tides and i dont know if they are the same.

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.