The point in the stress-strain test at which the material will have an appreciable elongation without any increase of load.
4 years 5 months ago
Xoc9dHk-3 If the bucket is leaking at a uniform rate so that it is half-full when no chain is out, how much work is done in winding-up the 30-m length?
4 years 5 months ago
Xoc9dHk-2 How much work is done in winding-up the full length of the chain?
4 years 5 months ago
Xoc9dHk-1 How much work is done in winding-up the upper half of the chain?
4 years 5 months ago
Situation - A uniform chain that weighs 0.50 kg per meter has a 15-liter bucket hanged at its end.
4 years 5 months ago
FtHV51n-3 Determine the limiting value for the amount of salt in the tank after a long time.
4 years 5 months ago
FtHV51n-2 Find the time at which the brine leaving will contain 1 lb/gal of salt.
4 years 5 months ago
FtHV51n-1 Find the amount of salt in the tank at any time, t.
4 years 5 months ago
Situation - A tank contains 80 gallons of pure water. A brine solution with 2 lb/gal of salt enters at 2 gal/min, and the well-stirred mixture leaves at the same rate.
4 years 5 months ago
Czgy9ZT-3 Find the weight of the tank when full of salt water in, kilo Newton.
4 years 5 months ago
Czgy9ZT-2 Find the weight of the tank when empty, in kilo Newton.
4 years 5 months ago
Czgy9ZT-1 Find the volume of the sheet iron in cubic meter.
4 years 5 months ago
Situation - A tank, open at the top, is made of sheet iron 1 in. thick.
4 years 5 months ago
At an ordinary rate a man can row the distance from Pasig to Manila, about 15km, in 5 hours less time than it takes him to return.
4 years 5 months ago
Point P has cylindrical coordinates of (8, 30deg, 5). Find the value of x in the Cartesian coordinates.
4 years 5 months ago
A construction company wants to number new houses using digit plates only. If the company puts an order for 1212 plates how many houses are to be given numbers? (The numbers of houses are consecutive and the number of the first house is 1).
4 years 5 months ago
If each expression under the square root is greater than or equal to 0, calculate...
4 years 5 months ago
To make lemonade, a recipe requires 4 lemons, 30 ounces of sugar, and 2 pints of water. One can squeeze out 0.4 cups of 5% citric acid from an average lemon.
4 years 5 months ago
10 business executives and 7 chairmen meet at a conference. If each business executive shakes the hand of every other business executive and every chairman once...
4 years 5 months ago
Kate and David each have \$10. Together they flip a coin 5 times. Every time the coin lands on heads, Kate gives David \$1.
4 years 5 months ago
A lead pencil whose ends are regular hexagons was cut from a cylindrical piece of wood with the least waste.
4 years 5 months ago
If the power of an engine grows by 10% when the number of its cylinders is increased by one, which of the following is closest to the ratio of the power of a 9-cylinder engine to that of a 12-cylinder engine?
4 years 5 months ago
How many integers between 18 and 70 inclusive are divisible by either 7 or 9 but not both?
4 years 5 months ago
After M students took the test, there was a total of 64% of correct answers. If the test contains 50 questions, what is the least number of questions that the next student have to get right to bring the total of correct answers to 70%?
4 years 5 months ago
The diagonals of a parallelogram are 16 cm and 28 cm, respectively. One side of the parallelogram is 12 cm. Find the area of the parallelogram.
4 years 5 months ago
The two sides of a triangle are 25 cm and 26 cm, while the altitude to the third side is 24 cm. Find the area of the triangle.
4 years 5 months ago
Find the angle between $2x - y + z = 10$ and $x + y + 2z = 11$.
4 years 5 months ago
A person buys a piece of property for P100,000 down payment and ten deferred semi-annual payments of P8,000 each starting three years from now.
4 years 5 months ago
From where he stands, one step toward the cliff would send the drunken man over the edge.
4 years 5 months ago
What time between 2 and 3 o 'clock will the angle between the hands of the clock be bisected by the line connecting the center of the clock and the 3 o 'clock mark?
4 years 5 months ago
The top of the tower signal at B 2000 m away from A was sighted through a transit with recorded vertical angle of 3deg30min.
4 years 5 months ago
From point A on level ground, the angles of elevation of the top D and bottom B of a flagpole situated on the of a hill are measured as 47°54' and 39°45'. Find the height of the hill if the height of the flagpole is 115.5 ft.
4 years 5 months ago
Samuel Pepys wrote Isaac Newton to ask which of three events is more likely: that a person get...
4 years 5 months ago
A circle has its center at (3, -27). It is tangent to the line $3x + 4y - 26 = 0$. Locate the point of tangency.
4 years 5 months ago
A definite integral has an integrand which is a fraction with denominator $\sqrt{4x^2 + 1}$. It is to be solved by trigonometric substitution. Which of the following is the appropriate substitution to use?
4 years 5 months ago
How many (Philippine) 6-inch hollow blocks are needed to cover 100 square meters of wall area? Assume no allowance for contingency.
4 years 5 months ago
It is defined as the ratio of a steel section's plastic moment to its yield moment.
4 years 5 months ago
This law states that the strength of a concrete is inversely proportional to its water-to-cement ratio.
4 years 5 months ago
What is the area moment of inertia of a semicircle of radius $r$ about an axis parallel to its base and passing through its centroid.
4 years 5 months ago
A spherical zone of one base of height $h$ is cut from a sphere of radius $r$. What is the volume of the zone?
4 years 5 months ago
It is the tensile force required on a tape to eliminate the effects of sag during tape surveys.
4 years 5 months ago
Cadastral surveying is a branch of surveying that deals with
4 years 5 months ago
All factors being equal, which of the following concrete mixes has the highest 28-day compressive strength?
4 years 5 months ago
In a 1:2:4 job mix concrete, how many parts is fine aggregates?
4 years 5 months ago
The Hyatt Regency Hotel walkway collapse is considered the best example of how important adhering to the engineering code of ethics is when designing structures. Where did this accident happen?
4 years 5 months ago
Let $f(x)=\sin x - \cos x$. Find the 2021st derivative of $f$.
4 years 5 months ago
Let $\angle ABCD$ be a cyclic quadrilateral. Then
4 years 5 months ago
If $a\geqslant b$, then $a \nless b$. This is true by which property?
4 years 5 months ago
If $a$ and $b$ are integers, then $a+b$ is also an integer. This is true by which of the following properties?
4 years 5 months ago
The coefficient of curvature of a soil is defined as
4 years 5 months ago