Search our library of homework questions

Top answers

All subjects

All levels

Discuss Cleopatra’s presentation in Act 1 Scene 3

Cleopatra’s desire for Anthony acts to undermine her portrayal of commanding through her obsession with him that seems to govern her irrational actions. Her opening line: ‘where is he?’ portrays her to be...

Answered by • English tutor

2050 Views

A satellite is in orbit of the Earth, and moves at a constant orbital speed of 3055.5m/s. If it is at an altitude of 35786km, calculate the time period for a complete cycle, giving your answer in hours. Answer should be given in in 3 significant figures.

Orbital Speed = [2Π(Orbital Radius)]/Time Period
3055.5m/s = 10999.8km/h
therefore:
10999.8km/h = [2Π(35786km)]/TT = [2Π(35786km)]/(10999.8km/h)T = 20.4 hours

Answered by • Physics tutor

2057 Views

Describe how starch is digested mechanically and chemically from the time we eat it in our mouth until it reaches our small intestine where it's absorbed.

The food firstly is mechanically digested in the mouth by the action of our teeth and tongue when we bite and churn it around. The saliva secreted in our mouth contains amylase which chemically breaks dow...

Answered by Louise P. • Biology tutor

3468 Views

A block of mass 5kg is on a rough slope inclined at an angle of 30 degrees to the horizontal, it is at the point of sliding down the slope. Calculate the coefficient of friction between the block and the slope.

If the block is at the point of sliding, we know the frictional force, F, is at it's maximuim, F = kR, where k is the coefficient of friction and R is the reaction force.As we know the mass of the block, ...

Answered by • Maths tutor

4620 Views