A nichrome wire is 2x10^-2 m long and has a cross radius of 3x10^-3 m what is the cross sectional ?

The least penetrating form of radiation is

What practical value did astronomy offer to ancient civilizations?

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?