What is the purpose of an air bag? The purpose of an airbag is to reduce injury by either cushioning the occupants contact with the interior of the vehicle or preventing contact completely. How does an airbag protect you from an injury? Airbags are passive safety features designed to mitigate or prevent injuries among drivers […]
What is the difference between a jack plane and a bench plane?
What is the difference between a jack plane and a bench plane? Bench Planes and Jack Planes A bench plane is a general type of woodworking tool. It’s a type of hand plane that’s used very frequently. It’s called a bench plane because in general you use it at your woodworking bench rather than on […]
What is a system in signals and systems?
What is a system in signals and systems? A system is any process that produces an output signal in response to an input signal. Continuous systems input and output continuous signals, such as in analog electronics. Discrete systems input and output discrete signals, such as computer programs that manipulate the values stored in arrays. What […]
What is meant by Cartesian coordinate system?
What is meant by Cartesian coordinate system? The Cartesian coordinates (also called rectangular coordinates) of a point are a pair of numbers (in two-dimensions) or a triplet of numbers (in three-dimensions) that specified signed distances from the coordinate axis. What is Cartesian coordinate system and what is its use? A Cartesian Coordinate System is a […]
Is crushed concrete better than gravel?
Is crushed concrete better than gravel? Crushed Concrete driveways are a much more cost-effective driveway solution compared to gravel driveways, regular concrete driveways, or asphalt driveways. With benefits like the price, sustainability, and the fact that it can never crack and require a repair, crushed concrete is a great driveway option. What is the use […]
What is the difference between stage acting and film acting?
What is the difference between stage acting and film acting? Everyone in the audience needs to see the action and hear the dialogue on stage, so theatre actors must exaggerate their movements and speak loudly to bridge the gap. Films, on the other hand, use a camera to eliminate the distance between performer and observer. […]
What is the energy transformation that occurs when a person exercises?
What is the energy transformation that occurs when a person exercises? Explanation: When you exercise, you are using mechanical energy to get your body moving. When you start sweating, your body is heating up, so it is thermal energy. What is an example of electrical energy being transformed into mechanical energy? A power drill converts […]
What is entropy in engineering?
What is entropy in engineering? Entropy (S) is a property of a substance, as are pressure, temperature, volume, and enthalpy. Because entropy is a property, changes in it can be determined by knowing the initial and final conditions of a substance. Entropy quantifies the energy of a substance that is no longer available to perform […]
How does pressure gradient affect diffusion?
How does pressure gradient affect diffusion? Diffusion and Henry’s Law Henry’s law tells us that pressure gradients affect the movement of gas into and out of a solution in a liquid. Carbon dioxide diffuses in the opposite direction since the partial pressure is greater in the blood entering the lungs than it is in the […]
What is the meaning of velocity and acceleration?
What is the meaning of velocity and acceleration? Here are the basic definitions of velocity and acceleration: velocity – the rate of displacement of a moving object over time. acceleration – the rate of velocity change over time. What is the physical meaning of acceleration? Acceleration is the rate of change of velocity. Usually, acceleration […]