A block of weight 12 lbs is placed on a cart of weight 40 lbs that is attached to a spring with a constant of 500 lb/in. The coefficient of static friction between block A and cart B is 0.15, and the coefficient of friction between cart B and the ground is negligible.
a.) Find the maximum amplitude of oscillation of the system to prevent block A from sliding.
b.) Use conservation of energy to determine the maximum velocity and acceleration of the system.
c.) If the cart begins at the maximum amplitude to the right, determine the equation for x(t), v(t), and a(t). [Hint: The template for the equations are in your Physics I book/notes.
In: Civil Engineering
Sandstone pore of 20 mm in diameter and 100 mm long
with porosity of 15% is prepared for
core flood experiment. The sandstone pore is fully (100%) saturated
with water by injecting
water with viscosity of 1cp at volumetric flow rate of 20 cubic
mm/sec. A pressure drop of 1
atm was recorded across the pore during the injection
process.
i. What is the absolute permeability of the sandstone pore sample
in mD?
ii. What is the pore volume of sandstone sample?
iii. The sandstone pore sample is flooded by oil with viscosity of
2 cp until
water saturation reaching to 25%. Calculate the oil volume inside
the pore
at the end of flood
In: Civil Engineering
The shield of negligible weight is held at an angle of 60° to deflect the 40-mm-diameter water stream, which is discharged at 0.02 m3/s. The guide on the shield deflects 30% of the discharge upward. Calculate the momentum of the flow exiting the nozzle Calculate the x component of the flow on the top side of the shield Calculate the y component of the flow on the top side of the shield Calculate the x component of the flow on the bottom side of the shield Calculate the y component of the flow on the bottom side of the shield Calculate the x component of the force required to hold the shield in place Include units in all your submissions
In: Civil Engineering
Explain what each of the two sustainability assessment methods BREEAM and LEED is intended for and what are the main differences between the two.
In: Civil Engineering
List and describe five specific characteristics of a “Green Building”.
In: Civil Engineering
11. Explain the importance of ZAV curve, and plot it for the soil as you see in your residential area..
In: Civil Engineering
CIVIL ENGINEERING AGGREGATE TEST LAB REPORT (ESSAY)
2.3 Specific Gravity for Fine Aggregates
2.3.1 Objective
2.3.2 Scope
2.3.3 Apparatus
2.3.4 Test Procedure
2.3.5 Test Result
these are the topics. Please use computer font.
In: Civil Engineering
CIVIL ENGINEERING AGGREGATE TEST LAB REPORT (ESSAY)
2.4Specific Gravity for Coarse Aggregates
2.4.1 Objective
2.4.2 Scope
2.4.3 Apparatus
2.4.4 Test Procedure
2.4.5 Test Result
These are the topics. Please use computer font.
In: Civil Engineering
Describe the three parts of a specification and list the different methods of specifying construction materials:
I
II
III
In: Civil Engineering
CIVIL ENGINEERING AGGREGATE TEST LAB REPORT (ESSAY)
2.5 Sieve Analysis
2.5.1 Objective
2.5.2 Scope
2.5.3 Apparatus
2.5.4 Test Procedure
2.5.5 Test Result
These are the topics. Please use computer font.
In: Civil Engineering
The two types of asphalt mix commonly used in Australia are Dense Graded Asphalt (DGA) and Fine Gap Graded Asphalt (FGGA). For these two mixes, describe their main features, when they should be used and describe their disadvantages.
In: Civil Engineering
The information of a transition curve for S.O.L. P0 from chainage 672.721m to 722.721m as follows.
Transition length = 50.00m
The radius of the curve = +450.00m
Calculate the setting-out data at 5.0m station interval in table form.
In: Civil Engineering
Granular-medium filter is one of the important unit processes to remove residual particular materials in drinking water treatment.
Discuss:
a)
the important variables which could affect the filtration performance;
b)
the filtration quality control measures;
c)
particle removal mechanisms within a granular-medium filter
In: Civil Engineering
Why, a fiber optic cable cannot be called as a
transmission line? Also clarify what are the
primary conditions required for a transmission line.
(b)Why a structured cabling system is required? Describe the
structure in a proper flow with a neat
diagram.
In: Civil Engineering
Oil and gas workers have some of the most dangerous jobs in the country. In fact, according to the Bureau of Labor Statistics, about 4.2 percent of all oil and gas workers are hurt on the job each year. A great many of these incidents involve an oil rig accident, suffered off-shore on the decks or in the wells of a drilling operation. To help workers become more aware of the dangers and hazards associated with their job, company usually put helpful guide, noting common types and causes of oil field accidents, so these can be avoided and prevented. There are a number of types and kinds of oil rig injuries that can be suffered on the job. Some are due to negligence or error on the part of employers or co-workers, while others are simply a hazard of the oil and gas industry. Common types of oil field accident includes: burns, brain and head injuries, exposure to toxic fumes, amputations. Some of the common causes of oil field accidents are Gas leaks, High pressure in wells, Falling of objects, etc.Based on what you study in the course and understanding on above case study a. What are direct causes of accident and explain in details with an example related to acts and condition(2.5 marks each)
In: Civil Engineering