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What controls the different types of aeolian transport?

There are 3 main types of aeolian transport - suspension, saltation and surface creep. Suspension involves sand particles being carried within the air. Saltation is the bouncing of grains along the surface b...
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Answered by Hannah K. • Geography tutor
11950 Views

How does a neuron transmit a signal across a synapse?

When an action potential from a pre-synaptic neuron approaches a synapse, the change in membrane potential causes voltage-gated calcium ion channels to open across the pre-synaptic bulb. Due to the high diff...
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Answered by Scott W. • Biology tutor
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For a car with a mass of 1200kg, how long will it take for it to accelerate to 25m/s, starting from rest, with a total driving force of 1,500N?

This can be solved in 2 main sections: the first to find the acceleration of the car, and then the second to find how long it spends accelerating. To find the acceleration, Newton's 2nd Law (F=ma) can be use...
CS
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What is the difference between a high- and a low-level programming languages?

In general you will be familiar with high level programming languages, such as PYTHON or JAVA. On the other hand there are low level languages, like C or the different dialects of ASSEMBLER. The most recogni...
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Answered by Max P. • Computing tutor
6897 Views

The second term of an arithmetic sequence is 7. The sum of the first four terms of the arithmetic sequence is 12. Find the first term, a, and the common difference, d, of the sequence.

Let a be the first term Let d be the common difference a + d = 7 S 4 = 4/2 (2a +3d) = 12 Simultaneous equation: a+d =7 // x 6 4a +6d = 12 Difference btween these two 6a + 6d = 42 4a +6d = 12 2a = 30 a = 15 d...
AT
Answered by Alexander T. • Maths tutor
22191 Views