A solid disc has a mass of 10kg and radius 1m. Find its radius of gyration. a) 1.414m b) 0.707m c) 1m d) 1.732

How can I find the area of a circle with radius 24.87m?

1. The floor of a rectangular building has an area of 120 square meter. The length of the floor / is 4m bigger than its width, w. Solve for I. Hint: Start with the equation of the area in terms of I. What kind of equation do you get? /= 48.11 X feet ! No, that's not the correct answer.

Q1) A) Find the answers to the following problems using the rule of Significant Figures a) (10.4168) m – (6.0) m b) (1.31) cm x (2.3) cm c) (5.7621) m / (6.201) m d) (2.5000) m + (32.85) m      B) Represent each answer above in the scientific notation

Hi please help: An 88kg person stands on a uniform 5.6kg ladder that is 4.0m long. The floor is rough, hence, it exerts both a normal force, f1, and a frictional force, f2, on the ladder. The wall, on the other hand, is frictionless, it exerts only a normal force, f3. Using the dimensions given, find the magnitude of f1, f2, and f3. Express answer using two significant figures and as kN as units.

3. Solve to the significant number of digits (a) 25.3456 + 888.010 + 53.11 +7-1.0 (b) (45.805*2.00)/5.0 + 0.1