What are the 7 steps in identifying analysis at a forensic case? Terms in this set (7) secure the scene. separate the witnesses. scan the scene. seeing the scene (taking photographs) sketch the scene. search for evidence. secure the collected evidence. What are the six phases of the forensic investigation process? There are following six […]
What happened to farmers in the 1930s?
What happened to farmers in the 1930s? When prices fell they tried to produce even more to pay their debts, taxes and living expenses. In the early 1930s prices dropped so low that many farmers went bankrupt and lost their farms. Some farmers became angry and wanted the government to step in to keep farm […]
What is the dry adiabatic rate of cooling for rising air?
What is the dry adiabatic rate of cooling for rising air? Dry adiabatic lapse rate: Assumes a dry parcel of air. Air cools 3°C/100 m rise in altitude (5.4°F/1000 ft). Which of the following is the dry adiabatic lapse rate? When the air contains little water, this lapse rate is known as the dry adiabatic […]
How does a CNC machine work?
How does a CNC machine work? The CNC controller works together with a series of motors and drive components to move and control the machine axes, executing the programmed motions. On the industrial machines there is usually a sophisticated feedback system that constantly monitors and adjusts the cutter’s speed and position. What is CNC machine […]
What is the gain of non-inverting amplifier?
What is the gain of non-inverting amplifier? A non-inverting amplifier uses a voltage-divider-bias negative feedback connection. The voltage gain is always greater than one. The voltage gain is positive, indicating that for AC input, the output is in-phase with the input signal and for dc input the output polarity is same as the input polarity. […]
What is the fracture toughness of a material?
What is the fracture toughness of a material? 17.7. “Fracture toughness” describes the resistance of brittle materials to the propagation of flaws under an applied stress, and it assumes that the longer the flaw, the lower is the stress needed to cause fracture. The ability of a flaw to cause fracture depends on the fracture […]
What is a quasi-equilibrium process?
What is a quasi-equilibrium process? In thermodynamics, a quasi-static process (also known as quasi-equilibrium, from the Latin quasi, meaning ‘as if’), is a thermodynamic process that happens slowly enough for the system to remain in internal equilibrium. Any reversible process is a quasi-static one. Why quasi static process is important? Equilibrium in a system in […]
Why is 0.2% proof stress used?
Why is 0.2% proof stress used? In other words, proof stress is the point at which a particular degree of permanent deformation occurs in a test sample. Proof stress is also called offset yield stress. Typically, the stress needed to produce 0.2 percent of plastic deformation is considered proof stress. How the 0.2% offset yield […]
How do you calculate average speed in miles per minute?
How do you calculate average speed in miles per minute? The most common formula for average speed is distance traveled divided by time taken. The other formula, if you have the initial and final speed, add the two together, and divide by 2. How do you calculate speed with minutes? Speed Calculator Or, if you […]
What is the Zeroth Law of Thermodynamics and how does it lead to the property known as temperature?
What is the Zeroth Law of Thermodynamics and how does it lead to the property known as temperature? The zeroth law of thermodynamics states that if thermal system A is in thermal equilibrium with thermal system B, and thermal system B is in thermal equilibrium with thermal system C, then A must be in thermal […]