Top answers

Bernard says that a mass executing uniform circular motion is not accelerating as it's speed is not changing. Which parts of his statement are correct and which are false. For those which are false state why they are and give the correct version.

Correct:For a mass which is executing uniform circular motion, it's speed doesn't change. False:(1) A mass which is executing uniform circular motion is not accelerating Correction to (1) Acceleration is def...
OC
Answered by Oliver C. • Physics tutor
1959 Views

Show that the derivative of tan(x) is sec^2(x), where sec(x) is defined as 1/cos(x). [Hint: think of tan(x) as a quotient of two related functions and apply the appropriate identity]

tan(x) is defined as sin(x)/cos(x) For a function which can be written as f(x) = u(x)/v(x) the quotient rule can be appliedThe quotient rule states f ' (x) = (u'v-v'u)/v^2 Applying this to the formula for ta...
OC
Answered by Oliver C. • Maths tutor
4157 Views

Could you explain the structure of the plasma membrane to me? (A level)

The cell membrane, also known as plasma membrane, you will know from GCSE is a feature of both animal and plant cells that helps contain cellular contents and control entry and exit of substances from the ce...
RH
Answered by Rita H. • Biology tutor
3059 Views

Expliquez dans vos propres mots la philosophie présentée par Camus dans son roman ‘L’étranger’

L’absurdisme est presentée par Albert Camus. Cette philosophie s’oppose à la raison, et se concentre sur l’isolation de l’individu du monde qu’il habite. La seule certaineté de cette philosophie est celle de...
MN
Answered by Medi N. • French tutor
3414 Views

How does increasing the temperature affect the yield of products of a reaction at equilibrium, where the forward reaction is exothermic?

The position of equilibrium changes after the temperature increases according to Le Chatelier's principle, which states that if a change is applied to a system in equilibrium, then the position of equilibriu...
JR
Answered by Jessamy R. • Chemistry tutor
36320 Views