Please help me solve this question; a) Calculate the moment of the force applied to the pedal
b) The cassette transfers this moment to the chain, creating tension in it. Using your answer to part (a), calculate the tension (force) in the chain

The magnetic field inside a superconducting solenoid is 4.50 t. the solenoid has an inner diameter of 6.20 cm and a length of 26.0 cm. determine (a) the magnetic energy density in the field and (b) the energy stored in the magnetic field within the solenoid.

What property of an object determines its inertia?

How many neutrons does element x if it’s atomic number is 28 and its mass number is 87