In this mixture, there are no enzymes present and therefore no products are formed. The reaction rate was rated 0, just as we anticipated. 2. The 2nd experiment was a mixture of 2 mL H2O2 and 0.1g Manganese dioxide. We can use the same principal we used for the first experiment, Manganese dioxide is not a protein, not an enzyme, it is a catalyst.
2011). The movement of materials across the bilayer can be achieved through passive and active transport; Passive transport is where small molecules can pass freely across the membrane without the need for an energy source, such as water and oxygen
In Experiment 2, explain why the membrane potential between the axon hillock and axon either changed or did not change with threshold stimulus. Differences of 1.0 mV or less are not significant Thresold there are no changes between the axon hillock and axon as have reached the max level of action potential. 4. In Experiment 2, explain why the number of action potentials generated varied with increased stimulation frequency. With increased stimulation frequency varied as there were not any longer a refractory period available with the supra-threshold stimuli.
D) Phases are often shown for each compound but are not critical to balancing an equation. E) All of the above statements (a-d) are true. 8. Which of the following statments is not true of balancing a chemical equation? A) Subscripts in the reactants must be conserved in the products.
TMA02 Methodology 1. Identify which of the following are correct descriptors of this study: A natural experiment is one descriptor of this study as it took place outside a laboratory setting and was conducted in the natural environment without interference or manipulation to the variables. Another descriptor of this study is an observational study as the researcher observed the participants without interacting with them and measured the variables of interest without assigning conditions. As Holly’s study only collected data the once this study was not longitudinal as this method collects data from an individual or group over a long period of time. Also the study is not experimental as the researcher did not manipulate the independent variable or randomise the participants to specific conditions.
Physics Project Julie Gay What is electricity, and how does it have anything to do with a battery or our body? According to “How Stuff Works”, “When you load a battery into an electronic device, you're not simply unleashing the electricity and sending it to do a task. Negatively charged electrons wish to travel to the positive portion of the battery -- and if they have to rev up your personal electric shaver along the way to get there, they'll do it. On a very simple level, it's much like water flowing down a stream and being forced to turn a water wheel to get from point A to point B.” So, what exactly does that mean to us? It means that electricity is a force that powers out world and our bodies (How stuff works, 2010).
B, C and D Electrical Circuit – an electrical device that provides a path for electrical current to flow Frequency – The cycles per second of alternating current, measured in Hertz Amplitude – the maximum difference of an alternating electric current or potential from the average value Phrase – is a position of a point in time on a waveform cycle Bit time – the time it takes for one bit to be ejected from a network interface card at a standard speed Encoding Scheme – a system used by computers to represent data as characters Unshielded twisted-pair – The word unshielded refers to the fact that UTP cables have no added shielding materials to prevent EMI problems Core- The light source on one end of the cable shines light into the core Cladding- surrounds the core, for the entire length of the cable, and reflects the light into the core Radio waves- work well for networking because as a waveform, radio waves can be changed (modulated) over time to send data. Wireless WAN- used often in mobile phone network/mobile network Wireless LAN- don’t not use cables and do use radio waves to send data Access Point – all user devices communicate only through the AP, most WLAN’s use this wireless
The light weight allows the supporting structures to be placed further apart and this reduces the overall cost. Series and Parallel circuits serve different purposes in households 3.1: Identify the difference between series and parallel circuits 3.2: Compare parallel and series circuits in terms of voltage across components and current through them Series: o Circuit connected end to end with only one possible path o Each resistor carries the same current regardless of the resistor value and this current value equal to the current supplied to that part of the circuit o Each resistor in series has its own voltage drop and the sum of the voltage drops equals the voltage supplied Parallel: o A parallel circuit is a closed circuit in which the current divides into two or more paths before recombining to complete the circuit. o Each resistor in parallel has its own current and the sum of the current values equals the current supplied. o Each resistor in parallel has the same voltage drop regardless of the resistor value and the voltage drop in each parallel resistor equals the voltage
• • Synthesized 87.9MHz to 108.1MHz for no frequency drift! Direct digital input of frequency, no jumpers or DIP switches! Designed for extruded, rugged metal case, all lines have RF chokes, and fully regulated for the cleanest sounding low noise performance yet! BNC style RF output for easy, reliable connections.
Students learn to operate electrical equipment using controllers, and to properly test, maintain, troubleshoot, and repair electrical circuits, motors, cables, circuit breakers, and other related electrical equipment for power distribution. ELECTRONICS TECHNICIAN NUCLEAR FIELD “A” SCHOOL – This course provides basic knowledge of technical mathematics and a good working knowledge of electricity and electronics, solid state devices, digital logic and systems, microprocessors, and instrumentation and control circuits. Students learn to interpret schematic diagrams and use appropriate test equipment to isolate and correct faults in electronic systems. Strategic