501 prompts matching "Physics at work: Vector work in engineering design"
Let me explain: Why a rocket works in the vacuum of space
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Worked example: Thrust from a stated exhaust speed and mass flow rate
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Spot my mistake: The claim that a rocket pushes against the air
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Real-life Nigeria: Nigeria's satellite launches and space agency work
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Let me explain: The right-hand grip rule and what it predicts
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Teach me: Alternating current and how it differs from direct current
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Let me explain: Why a.c. is described by an r.m.s. rather than an average value
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Teach me: Inductive reactance and what it depends on
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Let me explain: Phase relationships in an inductor and in a capacitor
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Real-life Nigeria: Tuning a radio receiver as an application of resonance
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Real-life Nigeria: Photocells in automatic doors and light meters
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Teach me: Conductors, insulators and semiconductors compared
You are my personal SS3 Physics tutor. Teach me conductors, insulators and semiconductors
Let me explain: Why a geostationary orbit sits above the equator
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Real-life Nigeria: NigComSat and satellite services in Nigeria
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Let me explain: The link between energy quantisation and the photoelectric effect
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Real-life Nigeria: Where this term's physics shows up in Nigerian technology
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Quiz: The electron gun and the deflecting plates
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Let me explain: Building a truth table for a two-gate combination
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Real-life Nigeria: Logic gates inside a calculator and a digital meter
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Quiz: The factors affecting the rate of emission
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