In Alaska, the top of Mount McKinley has been seen from the top of Mount
Sanford, a distance of 370 km. An object is 3.70 x 10-km from a giant
concave mirror. If the focal length of the mirror is 2.50 x 104 km what are the
object distance and the magnification?

the minimum amperage that the current in this wire would have to have so that its weight is completely supported by the magnetic force due to earth's field, assuming that no other forces except gravity act on it

0 = 0.40 / 0 = 0

= 0.20 = 9.80 ⁄2 =?

=0 , = = 0.20 =0.50 0 0.40 ⁄

=0−122 =0−12(9.80 ⁄2)(0.50)2 =1.2

a. spokes of a wheel.

as indicated in the question radial contains rad, also found in radius, so the fracture's would span the radius.