Category: Engineering

What is the formula for velocity and acceleration? Acceleration (a) is the change in velocity (Δv) over the change in time (Δt), represented by the equation a = Δv/Δt. This allows you to measure how fast velocity changes in meters per second squared (m/s^2). Acceleration is also a vector quantity, so it includes both magnitude […]

What is the difference between the clutch and the brake? So what’s the difference between the brake and the clutch? The brake is used to stop or slow down the rotating wheels of a vehicle. The clutch, on the other hand, transfers power from the car’s driving shaft and is used to start and stop […]

Why Does entropy increase during a spontaneous process? If heat flows into the surroundings (i.e., when a reaction is exothermic) the random motions of the molecules in the surroundings increase. Thus, the entropy of the surroundings increases. The second law of thermodynamics states that the total entropy of the universe always increases for a spontaneous […]

What is a Class 3 thread? Class 3 threads are tight tolerance threads that have no allowance and have very tight tolerances. Class 3 threads are often specified for tight tolerance fastener applications in critical use situations where safety and strength are a primary concern, such as the aerospace industry. What are 3 types of […]

How do you calculate ice melting rate? Using the equation for a change in temperature and the value for water from Table 1, we find that Q = mLf = (1.0 kg)(334 kJ/kg) = 334 kJ is the energy to melt a kilogram of ice. This is a lot of energy as it represents the […]

Is reliability a probability? Reliability is defined as the probability that an item will perform a required function without failure for a stated period of time. Another way to state is that It’s a measure of how long it takes for a network (or a system) to fail. So why Reliability is defined in terms […]

How does film boiling differ from nucleate boiling? Film boiling is a post critical heat flux (CHF) regime with a high surface temperature. Nucleate boiling is a type of boiling which occurs when the surface temperature is hotter than the saturated fluid temperature by a certain amount. In this type of boiling, the heat flux […]

How do I know what light bulb I need? If you used to buy 100 watt bulbs, look for a bulb with 1600 lumens. If you used to buy 75 watt bulbs, look for a bulb with 1100 lumens. If you used to buy 60 watt bulbs, look for a bulb with 800 lumens. If […]

What data should be encrypted during transmission through resort wireless networks to SBRU systems? But, hotels may not be devoted to provide the security issues as SBRU. Therefore, the “personnel data”, “reservation information”, and “chat information” are encrypted during the transmission from resort to SBRU system and its local client software. For which subsystem S […]

What is the capacitive reactance of a 1 microfarad capacitor at 60 hertz? The capacitive reactance equals 1,000,000 divided by 6.28 times 60 hertz times 106.1 microfarads which equals 25 ohms. What is the reactance of a capacitor? Capacitive Reactance is the complex impedance of a capacitor who’s value changes with respect to the applied […]