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How high can you raise a kilogram of sugar with 1 kWh of electrical energy? (To 2 s.f in kilometres)

The first thing to recognise is that the terms 'sugar' and 'electrical' are there to confuse you - the substance raised and the type of form of energy used to raise it are not important to the question.

Answered by Alexander L. • Physics tutor

2737 Views

What caused the collapse of the Weimar Republic?

A useful way of tackling this question would be to split your ideas of the possible factors into those based on structural phenomena and those driven by the agency of individuals. In this way, your answer...

Answered by Sebastian B. • History tutor

2318 Views

Analyse the compositional strategy and style of Joshua Reynolds' "Admiral Lord Hood" (1783).

Standing proudly as he rests his hand on a rock next to him is naval officer Lord Samuel Hood, depicted in the foreground of a sea-battle scene from the Battle of All Saints, one of the key military succe...

Answered by Francesca C. • History of Art tutor

1870 Views

Quali sono i pericoli di chattare su internet?

Internet è un mezzo di comunicazione potente, non solo ci permette di rimanere in contatto con le persone a noi più care come amici, partner e famigliari ma ci consente di fare nuove conoscenze. Ad oggi l...

Answered by Francesca C. • Italian tutor

1520 Views

How does a heterogenous catalyst work? (3 marks)

Reactants are adsorbed onto the surface of the catalyst (1). Bonds forms between the atoms and molecules on the surface (2), and the products desorb (3).

Answered by Yva P. • Chemistry tutor

1724 Views