Engineering » Page 109

Engineering

Malakai Huerta

When delivering a 60-second commercial in an interview, you should NOT

Answer Answers (1)

Engineering

Peyton Pollard

The common type of defects found when soldering on a printed circuit board

Answer Answers (1)

Engineering

Ellie Baird

In the process of nuclear fusion,

a. two or more nuclei fuse or stick together to form a heavier nucleus whose combined mass is slightly greater than the original nucleus

b. two or more nuclei fuse or stick together to form a heavier nucleus whose combined mass is slightly less than the original nucleus

c. a heavy nucleus breaks apart into a number of smaller nuclei whose combined mass is less than the original nucleus

d. two or more nuclei fuse or stick together to form a heavier nucleus that has exactly the same mass as the original nucleus

Answer Answers (1)

Engineering

Camila

Engineers are designing a ceramic component for a jet engine. The ceramic has a fracture toughness of 8 MPa m^1/2. The ceramic is subjected to a maximum tensile stress of 500 MPa. Calculate the maximum size of surface flaws that the part can have.

Answer Answers (1)

Engineering

Penelope

A solid square rod is cantilevered at one end. The rod is 0.6 m long and supports a completely reversing transverse load at the other end of + / - 2 kN. The material is AISI 1080 hot-rolled steel. If the rod must support this load for 104 cycles with a factor of safety of 1.5, what dimension should the square cross section have? Neglect any stress concentrations at the support end. Hint: Initially, assume the size endurance limit modification factor is kb=0.85; then check this assumption after the actual size is determined.

Answer Answers (1)

Engineering

Emery Meyers

The ventilating fan of the bathroom of a building has a volume flow rate of 32 L/s and runs continuously. If the density of air inside is 1.20 kg/m3, determine the mass of air vented out in one day. The mass of air is kg.

Answer Answers (1)

Engineering

Guest

Suppose that a wireless link layer using a CSMA-like protocol backs off 1ms on average. A packet's link and physical layer headers are always set at the same bitrate and take a total of 125us to transmit. If a packet is sent with a link layer payload of 1000 bytes at a bitrate of 1Mbps, what overhead do the physical and link layers introduce? Calculate overhead as the fraction of the complete packet time taken up by backoff and link/physical layer headers.

Answer Answers (1)

Engineering

Grant Pineda

Which of the following statements is true? Entropy is (A) The change in enthalpy of a system (B) The change in internal energy of a system (C) A property of a system (D) The heat capacity of a system (E) The heat content of a system

Answer Answers (1)

Engineering

Andre Soto

A packet weighs 40kg in air but when it is totally submerged into a 1mx1m square tank the weight of the packet is only 18kg. How much does the water rise in the tank?

Answer Answers (1)

Engineering

Sergio

What are the type of drainage

Answer Answers (1)

Engineering

Kassidy Aguirre

Voltage is a force known as?

Answer Answers (2)

Engineering

Molly Little

Two previously undeformed cylindrical specimens of an alloy are to be strain hardened by reducing their cross-sectional areas (while maintaining their circular cross sections). For one specimen, the initial and deformed radii are listed above as radius 1 and radius 2. The second specimen, has the initial radius listed, must have the same deformed hardness as the first specimen; compute the second specimen's radius, in mm, after deformation.

Answer Answers (1)

Engineering

Moises Burgess

The atomic radii of a divalent cation and a monovalent anion are 0.46 nm and 0.131 nm, respectively.

(a) Calculate the force of attraction between these two ions at their equilibrium interionic separation (i. e., when the ions just touch one another).

(b) What is the force of repulsion at this same separation distance?

Answer Answers (1)

Engineering

Kissy

What invention would you argue most impacted mechanical engineering

Answer Answers (1)

Engineering

Isaiah Tanner

Takt time is the rate at which a factory must produce to satisfy the customer's demand. a) - True b) - False

Answer Answers (1)