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 […]
How do you find the perimeter?
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 the purpose of an air bag?
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 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 […]
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 […]
How do I calculate engine compression ratio?
How do I calculate engine compression ratio? By definition, the compression ratio is the total swept volume of the cylinder with the piston at bottom dead center (BDC), divided by the total compressed volume with the piston at top dead center (TDC). What is the piston displacement of a master cylinder with a 1.5 inch […]
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 […]