Civil and Environmental Engineering Answers

The ball of a float has a diameter of 4-in, and the thickness of the metal is 0.05 in. How much does it weigh if it is made of copper? (Copper weighs 556 lb. per cu. ft.)

A 4- in auger hole is bored through a 10-in sphere, the axis of the hole coinciding with a diameter of the sphere. Find the volume bored out.

The ball of a float has a diameter of 4-in, and the thickness of the metal is 0.05 in. How much does it weigh if it is made of copper? (Copper weighs 556 lb. per cu. ft.)

Consider a 7.2 m ladder with a painter climbing up it. If the mass of the ladder is 15.0 kg, the mass of the painter is 83.2 kg, and the ladder begins to slip at its base when his feet are 39% of the way up the length of the ladder, what is the coefficient of static friction between the ladder and the floor? μwall = 0.265. The angle between the floor and ladder is 41°. Please ensure that all unknown answers are given. g=9.81m/s2. Find N1 and N2 as well as µ

 2° chord basis curve is to connect two tangent lines whose bearing are N32°15'18"E and N54°56'18"E. PC is contained in the first tangent line. Determine, the bearing of a radius whose end point is PT.

Consider a 7.2 m ladder with a painter climbing up it. If the mass of the ladder is 15.0 kg, the mass of the painter is 83.2 kg, and the ladder begins to slip at its base when his feet are 39% of the way up the length of the ladder, what is the coefficient of static friction between the ladder and the floor? μ_wall = 0.265. The angle between the floor and ladder is 41°. Please ensure that all unknown answers are given. g=9.81m/s². Find N₁ and N₂ as well as µ

If the ground speed of a sprayer is increased from 4 km/hr to 8 km/hr with the same set of nozzles and at a given pressure, by what percentage is the application rate reduced?

The system of blocks shown is initially moving with a velocity of 2m/sec. If they acquire a final velocity of 6m/sec after travelling 4m, find weight of block B. Use Work Energy principle.

Two vertical rods, one of steel and the other of bronze, each rigidly fastened at the

upper end, are at a horizontal distance of 1.05m apart. Each rod is 2.5m long and

20mm in diameter. A horizontal plate connects the lower end of the rods. Where

should a load of 30kN be placed on the horizontal plate. so that it remains horizontal

after being loaded. Es-200 GN/m² and Ebronze = 100 GN/m² (refer Fig-4)

A 6 m simply supported beam carries an ultimate live load of 50kN at midspan. Determine the plastic moment of the beam.