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A satellite orbits the Earth in a circular orbit with a radius of 8000 km. If the mass of the Earth is 6×1024 kg, what is the speed of the satellite? (Use G = 6.67×10−11 Nm2/kg2).
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A container contains 2 moles of an ideal gas at a temperature of 300 K. Given the gas constant R=8.314 J/mol⋅K, what is the pressure exerted by the gas if the volume is 0.1 m³?
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A convex lens has a focal length of 10 cm. An object is placed 15 cm from the lens. What is the position of the image formed?
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A sound wave has a frequency of 500 Hz and a wavelength of 0.68 m. What is the speed of sound in the medium?
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Two charges of +1 μCand −2 μC are separated by a distance of 1 m. What is the force between them? (Use k=9×109 Nm2/C2).
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A capacitor of 5 μF is charged to a potential difference of 10 V. What is the charge stored in the capacitor?
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If a current of 2 A flows through a resistor for 5 minutes, how much charge passes through the resistor?
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The magnetic field inside a long solenoid carrying a current is directly proportional to
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The energy of a photon is given by E = hf. If h = 6.63×10−34 Js and the frequency f = 5×1014 Hz, what is the energy of the photon?
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The half-life of a radioactive substance is 10 years. If you start with 100 grams, how much will be left after 30 years?
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