Depending on the age the toy is made for it could teach younger children things such as letters and numbers and for a older kid it could teach them how different things are put in the robot to help it work
Answer:
(d) all of the above
Explanation:
Effect on the density of temperature: If we increase the temperature of any room then particles of the room moves and to and fro and so density is decrease
Effect on the viscosity of temperature : viscosity is inversely proportional to the temperature if we increase the temperature viscosity decreases and if we decrease the temperature viscosity increases.
Effect on the resistance of temperature : For metals if we increase the temperature then resistance increases and for semiconductor if we increase the temperature resistance decreases
So from above discussion all the parameter depends on the temperature so option (d( will be the correct option
Answer:
Explanation:
The acceleration field is obtained by deriving the components in function of the time. That is to say:
Where 
and 
.
The velocity components at given point are, respectively:
Lastly, the acceleration components are found:
Answer:
Explanation:
The rank of the magnitude of the diffusion coefficient from greatest to least is as follows:
C in Fe at 900°C > Cr in Fe at 900°C > Cr in Fe at 600°C
Reason
C in Fe is an interstitial impurity while Cr in Fe is a substutional impurity.Therefore interstitial impurity occurs in C in Fe systems,while substutitional diffusion occurs in Cr in Fe system.Interstitial is much faster than substitutional diffusion hence the order
Also with increasing temperature magnitude of diffusion coefficient increases,due to the relation.
D = D₀exp(-Qd/RT)
Where D₀=Temperature independent per exponential
Qd= The activation energy for diffusion
R= Universal gas constant
T=absolute temperature
You are going to have to be more specific than that, perhaps add a picture next time ? Unfortunately, this question can’t be answered.
