Answer:

Explanation:
To give this problem a solution, it is necessary to use the kinematic equations. The equation that describes velocity as a function of acceleration is given by,

Since there is a loss of 11.9%, in the final speed, that is to say that of the total speed, only 88.1% is the effective one, so

Re-arrange to find a,


Applying Newton's second law we have now that



1*10*1000=10000 energy= temp change*mass*specific heat capacity
The working equation to be used here is written below:
Q = kA(T₁ - T₂)/Δx
where
Q is the rate of heat transfer
k is the heat transfer coefficient
A is the cross-sectional area of the wall
T₁ - T₂ is the temperature difference between the sides of the wall
Δx is the thickness of the wall
The solution is as follows:
Q = (0.69 W/m²·°C)(5 m × 6 m)(50°C - 20°C)/(30 cm * 1 m/100 cm)
Q = 2,070 W/m
Answer:

Explanation:
Un electrón tiene una carga negativa de
y la masa total es igual al producto del número de electrones y esa carga unitaria. El número de electrones se obtiene al dividir la carga total por la carga unitaria. (An electron has a negative charge of
and the total mass is equal to the product of the qunatity of electrons and such unit charge. The quantity of electrons is found by diving the total charge by the unit charge):



Increase in speed or rate