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Trolley A weighs 5kg and is moving at 15m/s to the right. It collides with a stationary Trolley B, weighing 10kg more than Trolley A. After the collision they move off together. Calulate the velocity that they move off with.

To start with, we should work out all of the quantities we need: 

Mass of Trolley A:  MA= 5kg 

Mass of Trolley B: B weighs 10kg more tha...

JD
Answered by Joshua D. • Physics tutor
8060 Views

Describe the four moraine landforms found in glacial environments.

'Moraine' is a term given to pieces of rock transported by a glacier, and can my divided into four different categories.

'Ground Moraine' is a collection of rock dragged underneath a glac...

CB
Answered by Calum B. • Geography tutor
5206 Views

How do you form the imperfect tense in Spanish?

The imperfect tense is used in Spanish to describe something in the past or to talk about something that happened often or habitually, for example going to school every day.

It has two di...

DM
Answered by Danielle M. • Spanish tutor
4406 Views

When do you use avoir and when do you use être in the past tense?

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