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Find the factors of x^3−7x−6

To find the factors of x3-7x-6, a method called equating coefficients can be used.

Firstly, set the equation to zero and find a suitable number which satisfies the equation, in...

MW
Answered by Michael W. Maths tutor
11555 Views

A ball of mass 0.7 kg strikes the wall at an angle of 90 degrees with speed 72 km/h. Consider that the bounce lasts for 0.1 s and is perfectly elastic. What is the magnitude of the average reaction force from the wall that acts on the ball?

initial speed: v =  72 km/h = 20 m/s. 
mass: m = 0.7 kg
time of the impact: t = 0.1 s
average force: F
The speed after impact is the same as initial speed, but velocity has got ...

FM
Answered by Filip M. Physics tutor
4056 Views

Outline the positive and negative effects that tourism can have on fragile environments

A great way of approaching this question is by applying a case study such as tourism in Antartica. Geographers argue that Antartica is the only wilderness left in the world - that is to say that i...

SL
Answered by Scott L. Geography tutor
6767 Views

How do B-Lymphocytes Work?

B-Lymphocytes remain in the bone marrow until they mature and then spread throughout the body, concentrating in the lymph nodes and the spleen.They express a specific intrinsic protein called a B-cell rec...

MJ
Answered by Michael J. Biology tutor
9030 Views

How to write a History Essay?

There’s no simple way to write a history essay. Even those who have been in the field for years are not always perfect. However, there are some tips that always apply.1. Structure-...

MJ
Answered by Michael J. History tutor
3192 Views

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