4. A steel cable spanning a river is 220.000 m long when the temperature is 30.°C.
What will be its length when the temperature drops to 0°C? (The coefficient of
thermal expansion of steel is 12x10-6K-1).

How is acceleration calculated? a. initial velocity - final velocity / timeb. initial velocity + final velocity / timec. final velocity - initial velocity / timed. final velocity / timele select the best answer from the choices provided0oood00save and exitnextmark this and return

Crowbar of 5 metre is used to lift an object of 800 metre if the effort arm is 200cm calculate the force applied

An electromagnet is a device in which moving electric chargers in a coil of wire create a magnet. whats one advantage of using electromagnetic in devices