Question 11: it is easy to create an ellipse using a loop of string and two thumbtacks. the string is first stretched over the thumbtacks which act as foci. the string is then pulled tight using the pencil which can then trace out the ellipse. assume that you wish to draw an ellipse with a semi-major axis of a = 20 cm and e = 0.5. using what you have learned earlier in this lab, what would be the appropriate distances for a) the separation of the thumbtacks and b) the length of the string? fully explain how you determine these values.

What is the order of the moon, earth, and sun in a lunar eclipse and a solar eclipse?

Part a determine the magnitude of the x component of f using scalar notation. fx f x = nothing lb request answer part b determine the magnitude of the y component of f using scalar notation. fy f y = nothing lb request answer part c determine the magnitude of the z component of f using scalar notation. fz f z = nothing lb request answer provide feedback figure1 of 1a force vector acting on a ring attached to the ground is shown in the xyz space together with its x, y, and z components lying on the corresponding positive axes. the ring is located at the origin. force f is located in the first octant. f makes an angle of 60 degrees with its x component and an angle of 45 degrees with its y component. a force vector acting on a ring attached to the ground is shown in the xyz space together with its x, y, and z components lying on the corresponding positive axes. the ring is located at the origin. force f is located in the first octant. f makes an angle of 60 degrees with its x component and an angle of 45 degrees with its y component.

Which changes of state do the labels represent? a: b: c: