 142 Answered Questions for the topic mechanical engineering

Mechanical Engineering Calculus Sat Math

14d

#### Use a double integral to find the area enclosed by x = y − y^2 and x + y = 0.

use double integral to solve this calculus based problem.define the region and set the limits.
Mechanical Engineering Math Physics

29d

#### The volleyball is played with a ball of about 270 g and 21 cm in diameter.

In one game, the ball ended up in a pool with so much strength that it almost reached the bottom of it and then went up to the surface.Calculate:a) The force exerted by the pool water on the... more
Mechanical Engineering Math Physics

10/29/20

#### A 20 cm high polystyrene board with a surface area of 40 dm2 is floating in the water.

a) What fraction of its volume is above the water surface?b) If a 35 kg child is placed on this board, what will be the fraction of its volume that is above the water surface?Data: Polystyrene... more
Mechanical Engineering Math Physics

10/29/20

#### A piece of copper immersed in water has an apparent weight of 2.65 N and when it is immersed in a liquid of density 1.50 x 103 kg/m3 its apparent weight is 2.50 N.

Is it pure copper or does it contain any other metal? Copper density 8.9 X 103 kg/m3.
Mechanical Engineering Math Physics

10/29/20

#### A fluid pressure gauge, called a Venturi tube, or venturer, is a device designed to measure the velocities of fluids flowing through pipes.

It consists of a tube that is inserted in the pipe, has the same diameter as this one, gradually narrowing and then increasing, the section also gradually to avoid the formation of swirls and thus... more
Mechanical Engineering Math Physics

10/29/20

#### The volleyball is played with a ball of about 270 g and 21 cm in diameter.

In one game, the ball ended up in a pool with so much strength that it almost reached the bottom of it and then went up to the surface.Calculate: a) The force exerted by the pool water on the ball.... more
Mechanical Engineering Math Discrete Math

10/09/20

The cardinality of the set                          is  , while the cardinality of the set  is -----------  while the cardinality of the set   is--------
Mechanical Engineering Thermodynamics

10/08/20

#### Final year project

hi I'm just starting my final year and have to complete a final year project. I'm trying to think of some ideas at the moment I have one or two to do with solar power but I am struggling to think... more
Mechanical Engineering Math Discrete Math

10/02/20

Let  and    and . Which of the following statements is (are) true?(can have many answers)a.)b.)c.)d.)e.)f.) Which of the following statements is (are) true?  .  Which of the following statements is... more
Mechanical Engineering Math Discrete Math

10/02/20

Which of the following is the power set of ? a.) 4b.)c.)d.)e.)     ?
Mechanical Engineering Math Discrete Math

10/02/20

Which of the following is a subset of ?Note: There may be multiple correct answers!a.) b.) c.) d.) e.)
Mechanical Engineering Math Discrete Math

10/02/20

What is the cardinality of the following set?(This can have many answers)a.) 0b.) 4c.) 7d.) 3
Mechanical Engineering Math Discrete Math

10/02/20

Consider the set          .Which of the following is the corresponding set builder notation for the above set?a.) b.) c.)d.)
Mechanical Engineering Math Calculus

09/29/20

Let  and  be any given sets. Use set builder notation and logical equivalences to show that       .
Mechanical Engineering Math Calculus

09/21/20

In each of the following, decide whether the given quantified statement is true or false (the domain for both  and  is the set of all real numbers). Provide a brief justification in each... more
Mechanical Engineering Math Calculus

09/21/20

In each of the following, decide whether the given quantified statement is true or false (the domain for both  and  is the set of all real numbers). Provide a brief justification in each... more
Mechanical Engineering Math Calculus

09/21/20

Negate the following statement:                  Is the negation true or false? Briefly justify your answer.
Mechanical Engineering Calculus Discrete Math

09/21/20

Negate the following statement:                  Is the negation true or false? Briefly justify your answer.
Mechanical Engineering Math Calculus

09/18/20

Prove if it is tautology (p→q) ∨ [(p ∨ ¬q ∨ p) ∨ ¬r)] with the use propositional laws. *please use the propositional laws to prove this.
Mechanical Engineering Math Calculus

09/18/20

Prove if it is tautology(p→q) ∨ [(p ∨ ¬q ∨ p) ∨ ¬r)] with use propositional laws.
Mechanical Engineering Math Calculus

09/18/20

What would be the negation of the statement ?
Mechanical Engineering Math Calculus

09/18/20

Which of the following quantified statements is (are) true? Let the domain for  be the set of all real numbers.[Note: There may be multiple correct answers!]a.) b.) c.) d.)  e.) f.)
Mechanical Engineering Math Computer Science

09/12/20