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A stationary observer Bob, observes Alice take 5 seconds to travel from point A to B at 0.95c. How much time does Alice measure the journey from A to B to take?

This question is all about the application of Special Relativity. In order to solve this problem we need to identify that the correct equation to use here is:t= (gamma factor)t0Where t is the t...

ER
Answered by Elizabeth R. Physics tutor
2833 Views

Explain the difference between the cache memory and the buffer.

The cache memory aims to reduce the memory access time and thus increase your computer speed by storing frequently accessed data. A buffer, such as a printing buffer, is just a temporary memory storage th...

CF
Answered by Cesar F. Computing tutor
8235 Views

What is the difference between data verification and data validation?

Data verification is a way of ensuring the user types in what he or she intends, in other words, to make sure the user does not make a mistake when inputting data. An example of this includes double entry...

CF
Answered by Cesar F. Computing tutor
73732 Views

1 dm^3 of water steam at 200 degrees C, 10 bar enters a compressor. When it leaves, its temperature is 400 deg. C and volume 0.5 dm^3. Calculate the final pressure of steam. Critically discuss the assumptions you made in your calculations.

This question refers to the behavior of gases under compression. In IB we model such situations using the ideal gas equation, which states that:

pV = nRT,

where:

...

MM
Answered by Marcin M. Physics tutor
3337 Views

Sort the following substances MgO, Na, H2O, H2S, NaCl, in the order of increasing melting temperature.

This question deals with the properties of substances and how they relate to their internal structure.

First, we of course need to understand what the property we are asked to evaluate me...

MM
Answered by Marcin M. Chemistry tutor
14072 Views

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