Which of the following cannot be used for measurement of time a A leaking tap

b simple pendulum

c shadow of object during the day

d blinking of eyes ​

What is the magnitude of the gravitational force acting on the earth due to the sun?

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?

Element with 5protons and 3neutrons