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A game consists of 5 cups turned upside down, under one of the cups is a prize. 5 friend's pick a cup in turn and lifts it up, if they get the prize, they win , but if not, the cup is removed and the next friend picks. What position is it best to pick?

The first friend to choose has 5 cups to pick from and only 1 that will win them the prize, so their probability of winning is 1/5.The 2nd friend relies on the first friend to not win, this with a probabilit...
AM
Answered by Alex M. • Maths tutor
2707 Views

What were the reasons that led to Hitler's rise to power?

Personal Reasons: 1. Hitler was a great speaker , with the power to make people support him.2. Goebbels' propaganda campaign was very effective and it won support for the Nazis. The Nazis targeted specific g...
ED
Answered by Ethan D. • History tutor
7560 Views

What were two of the key weaknesses of the Weimar Constitution?

The Electoral System - Weimar's Constitution used an electoral system of pure proportional representation. This meant that a party got a percentage of the seats in the Reichstag that corresponded with its pe...
ED
Answered by Ethan D. • History tutor
4310 Views

When using verbs in le passé composé (Perfect tense) how should I know which verbs take the avoir-form and which take the être-form?

When you are constructing verbs in le passé composé, most verbs will take the avoir form (eg. J'ai écouté) but some verbs will take être (eg. Je suis allé). The verbs that take être can be remembered using t...
ED
Answered by Ethan D. • French tutor
1816 Views

"An inclined plane at an angle of 25 degrees to the horizontal has a pulley at its top. A 30kg block on the plane is connected to a freely hanging 20kg block by means of a cord passing over the pulley. From rest how far will the 20kg block fall in 2s?

For the 20kg block choose downward as positive and for the 30kg block choose the x axis along the incline as positive.Apply Newton's second law of motion to each block separately.The pulley is frictionless a...
JW
Answered by Joni W. • Physics tutor
5338 Views