Top answers

Why do we use a warm up before doing exercise?

To raise the resting heart rate and increase muscle temperture. To increase muscle elasticity to prevent the risk of injury. To provide focus for the upcoming sport or exercise bout.
OM
2733 Views

Which are the forms of heat you know. Explain them briefly including an example

The most common ways to transfer heat are conduction and convection. Conduction is heat transfer through mollecular collision. The slower speed particles, or colder particles will increase their kinetic ener...
JA
Answered by Joao A. • Physics tutor
2637 Views

Having x(x+4)=y, calculate dy/dx

Considering that x(x+4) = x^2+4x, and having that the derivative of the sum is the sum of the derivatives. dx/dy x^2 = 2x and dx/dy 4x = 4 , then dx/dy x(x+4) = 2x+4
JA
Answered by Joao A. • Maths tutor
2133 Views

Which are the types of carrier movements and how are they activated

Drift - As a result of an electric field Diffusion - As a result of a carrier gradient, by other words a difference in the carrier level from one side to the other, usually when we have a p-n junction
JA
Answered by Joao A. • Physics tutor
2468 Views

What are the different cases in German and how do I know which to use?

There are 4 main cases in German, the nominative, accusative, dative, and genitive. The nominative case is the subject of the sentence: what is doing the action - 'THE MAN throws the ball' The accusative cas...
KF
Answered by Katie F. • German tutor
2202 Views