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How does the heart contraction and what controls Heart Rate (HR)?

Myogenic contraction mechanism of the heart: The heart is myogenic and so the heart beats due to electrical activity from inside the heart itself. This is compared to muscle that contracts due to signals fro...
BD
Answered by Bethany D. • Biology tutor
2854 Views

Is the UK a two party system?

Firstly, what is the question asking?Essentially, this question is asking whether or not UK politics is dominated by just two parties (Conservative and Labour) or if instead minor parties have more of an inf...
JT
Answered by Jake T. • Politics tutor
22187 Views

A projectile is thrown from the ground at 30 degrees from the horizontal direction with an initial speed of 20m/s. What is the horizontal distance travelled before it hits the ground? Take the acceleration due to gravity as 9.8m/s^2

Draw diagram outlining the symmetric parabolic shape of the projectile's motion. Find vertical component of the initial speed using SOH CAH TOA. sin(30) = opposite/hypotenuse = x/30therefore, x = 30sin(30)ve...
RD
Answered by Raphael D. • Maths tutor
3634 Views

Has the West mis-perceived Islam?

Arguments in support of Westerners misperceiving Islam:1. Fox News stating that Birmingham was an 'All Muslim' city - a clear example of misperception. Other media examples (e.g. on "Sharia courts"...
OD
1531 Views

What should my mindset and approach be when tackling the exam?

Approaching A Level English Literature exams can be extremely daunting. Three hours simultaneously seems like both an eternity and not at all enough time to say everything you want to. Personally, the most i...
Answered by • English Literature tutor
4048 Views