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The Polar Bear is the largest species of bear in the world. With regards to adaptation, suggest a reason for this.

The habitat of the Polar Bears is the arctic. This is a much colder climate than the other species of bear found in the wild. Therefore the Polar Bear has adapted to live in this colder climate. One adaptati...
ZF
Answered by Zia F. • Biology tutor
6647 Views

A 950 kg car accelerates from 0 to 33 m/s in 11 seconds. a) Calculate the acceleration of the car b) Calculate the force needed to produce this acceleration c) The car claims a top speed of 110 miles/hr. Explain why there must be a top speed for any car

a) a=v-u/t = 33/1 = 3 b) F = ma = 950x3 = 2850 c) Friction and air resistance increases with speed, till frictional = max forward force, then force/acceleration is zero
RB
Answered by Raina B. • Physics tutor
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Solve the simultaneous equations 7x - 2y = 22 and 5x + 3y = 29

So we're going to solve this question using the elimination method. Now we can see that none of the x or y terms are the same in the 2 equations, so we have to make them the same. The easiet way to do this w...
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Answered by Raina B. • Maths tutor
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Using examples of an Earthquake, describe the effects of the disaster. (4 marks)

Kobe Earthquake hit Japan in January 1995 with a magnitude of 6.9 Mw. The short term effects were that 6433 deaths occured, and around 27,000 people were injured due to collapsed buildings and structures. Al...
AC
Answered by Adriana C. • Geography tutor
3982 Views

How do I form an algebraic fraction into a single fraction in its simplest form?

When starting with a fraction with 2 individual components, before any addition, subtraction or simplification can take place, the first step will be making them both having the same denominator. Once you ha...
AS
Answered by Axel S. • Maths tutor
9006 Views