D: 0.85
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Which quantity is measured in kilowatt-hours?
The diagram represents parts of a power station. What is the order of the energy changes taking place?
A crane lifts a weight of 1000 N through a vertical height of 30 m. It uses 60 000 J of energy. What is the efficienc…
Which row gives the range and electrical charge of an alpha-particle?
¹⁴₆C represents a nuclide of the element carbon and ¹⁴₇N a nuclide of nitrogen. How does a neutral atom of ¹⁴₇N diffe…
Each row contains a vector and a scalar. In which row is the size of the vector equal to the size of the scalar?