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The modulus of elasticity of concrete is a function of the modulus of elasticity of the aggregates and the cement matrix and their relative proportions. ... more
The orbital period is the time taken for a given object to make one complete orbit around another object.
When mentioned without further ... more
A compound machine is a machine formed from a set of simple machines connected in series with the output force of one providing the input force to the ... more
The constant Kv (motor velocity constant, or the back EMF constant) is a value used to describe characteristics of electrical ... more
Mechanical advantage is a measure of the force amplification achieved by using a tool, mechanical device or machine system. Ideally, the device preserves ... more
Dolbear’s law states the relationship between the air temperature and the rate at which crickets chirp. It was formulated by Amos ... more
Dolbear’s law states the relationship between the air temperature and the rate at which crickets chirp. It was formulated by Amos ... more
Mechanical advantage is a measure of the force amplification achieved by using a tool, mechanical device or machine system. Ideally, the device preserves ... more
A gear or cogwheel is a rotating machine part having cut teeth, or cogs, which mesh with another toothed part to transmit torque, in most cases with teeth ... more
Counter-electromotive force (abbreviated counter EMF or simply CEMF), also known as back electromotive ... more
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