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How significant were the Purges in the creation of the totalitarian state? (Russia)

The period of the purges (1936-38) involved the widespread surveillance, imprisonment, and execution of ‘counter-revolutionaries’. This was often used as a smokescreen for Stalin to kill his personal politic...
DC
Answered by David C. • History tutor
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All tickets to the movie theatres cost the same price. Jessica and Thomas pay £84 together. Jessica pays £38.5 for 11 tickets. How many does Thomas Buy?

Firstly, you form the question into an equation. for example, J + T = 84. We know Jessica paid £38.50, so now we can add that to the equation. 38.50 + T = 84. Now that we have does this we move the 38.5 to t...
KP
Answered by Kate P. • Maths tutor
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Explain, with reference to the Schwarzschild radius, why the sun isn’t a black hole.

The Schwarzschild radius of the sun can be calculated using Rs= (2GM)/c 2 . Substitute in the mass of the sun (M=2 10 30 ), the speed of light (c=3 10 8 ), and the universal gravitational constant (G=6.674 1...
LB
Answered by Libbie B. • Physics tutor
6075 Views

Explain how the resistance of a filament lamp changes as the potential difference across it increase

As the potential difference across the filament lamp increases the current across the lamp also increases due to Ohm's law.The increase in current flow also causes the lamp to heat up which causes the resist...
FB
Answered by Fraser B. • Physics tutor
19854 Views

What is an example of a human effect on biodiversity?

Biodiversity is defined as the range of different organisms that live in a particular ecosystem (the living and non-living components of an area, and how they interact to produce a system.) An example would ...
DN
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