. 17. What is meant by a).moment of a force about a a point b) Principle of moments
A uniform rod 8m long weighing 5kg is supported horizontally by two vertical parallel strings at Pand Q, and at distances of 2m, and 6m from one end. Weights of 1kg, 1.5kg and 2kg are attached at distance of 1m, 5m and 7m respectively from the same end. Find the tension in each vertical string.​

Two polarizers are oriented at 24.0∘ to one another. light polarized at a 12.0-degree angle to each polarizer passes through both. what is the transmitted intensity (%)?

Aperson stands on a platform, initially at rest, that can rotate freely without friction. the moment of inertia of the person plus the platform is ip. the person holds a spinning bicycle wheel with its axis horizontal. the wheel has moment of inertia iw and angular velocity ωw. take the ωw direction counterclockwise when viewed from above. part a what will be the angular velocity ωp of the platform if the person moves the axis of the wheel so that it points vertically upward?

What is the average speed of a car that travels 40mph for 1 hour and 60 mph in another hour will mark brainliest