The gravitational force exerted by the Moon on an 82.0-kg astronaut is 129.8 N. The distance of the astronaut above the Moon's surface is km. (mass of the Moon = 7.3483 x 10^22 kg, radius of the Moon = 1.7374 x 10^6 m)

Orque can be calculated by multiplying the force (n) applied at 90∘ to the lever arm at a distance (m) from the pivot point (point of rotation), the compound si unit for the torque is n⋅m. if the force (at 90∘ to the lever arm) applied is 15 n and it is applied at 2.0 m from the pivot point (point of rotation), what is the torque on the lever?

Definition: this is the weighted average of all of the isotopes of an element.

Make a drawing of the electric field lines around a positive charge, then make a second drawing of the electric field lines around a negative charge.