Like the moon's orbit, earth's orbit is not a perfect circle, but an oval how do you think this might affect earth's tides?

Aplane takes off from an airport and flies to town a, located d1 = 215 km from the airport in the direction 20.0° north of east. the plane then flies to town b, located d2 = 230 km at 30.0° west of north from town a. use graphical methods to determine the distance and direction from town b to the airport. (enter the distance in km and the direction in degrees south of west.)

What is the orbital period of a spacecraft in a low orbit near the surface of mars? the radius of mars is 3.4×106m.

Acoil suspended freely, points in some direction when no current is passed through it . can you tell what will happen when a current is passed though it?