A laser has a frequency of 5.45x1015 Hz as it travels through a vacuum. What is the wavelength? 5.50x10-8 m
1.82x10-21 m
1.82x107​​​​​​ m
5.50x1022​​​​​ 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?