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Describe one method by which the distance to stars from Earth is measured, and one modern improvement to this method which increases its accuracy.
GCSE
Related GCSE Questions
A person swims from a depth of 0.5m to 1.7m below the surface of the sea. Denisty Sea Water = 1030 kg/m^3. g=Gravitational Field Strength = 9.8 N/kg. Calculate the change in pressure on the swimmer and give the unit.
Explain how Pumped-storage hydropower (PSH) can store energy.
(A-level but box won't let me change it from GCSE) A particle of charge q and initial speed v is stopped by a potential difference V in distance d and time t. What was its initial momentum?
Why do you weigh less on the Moon than on Earth?
If a ball is thrown at a velocity of 5m/s, what height does it reach?
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