Answer:
T0=390 degF
Explanation:
The thermometer reading 70◦Fis placed in an oven preheated to a constant temperature. Through the glass window in the oven door, an observer records that the thermometer reads 110◦F after 12 minutes and 145◦F after 1 minute. How hot is the oven? Newton’s law of cooling yields the following differential equationdTdt=k(T−T0), whereT0 is the ambient temperature.
If T is temperature, then by Newton’s law
dTdt=-k(T−T0)
Where
T0− is temperature of oven
∫
ln(T-T0), from 110 to 70=-kt, from 1/2 to 0
ln(110-T0)-ln(70-T0)=-k(1/2-0)
integrating the LHS of the equation from 110 to 145F
∫∫∫
ln(145-T0)-ln(110-T0)=-k(1-1/2)
2ln145-T0/(110-T0)=-k
k=-2lnT0-145/(T0-110).......................2
couplijng equatiuon 2 with 1
(T0-110)^2=(T0-70)(T0-145)
T0^2-220T0+12100=T0^2-215T0+10150
5T0=1950
T0=390 degF
Explanation:
The x component of the resultant force is the sum of the x components of the individual forces.
Fₓ = 65.0 cos 30° − 20.0 sin 20° − 30.0
Fₓ = 19.5
The y component of the resultant force is the sum of the y components of the individual forces.
Fᵧ = 65.0 sin 30° − 20.0 cos 20°
Fᵧ = 13.7
The magnitude is found with Pythagorean theorem:
F² = Fₓ² + Fᵧ²
F² = (19.5)² + (13.7)²
F = 23.8
Answer:
Because nothing is blocking the LIGHT!
Explanation:
Light may still be shining on the whole glass but if it wasn't there light would shine brighter than if it was there.
Answer:
Hi there! I have only the procedure and the scientific names of the creatures. Hope this helps!
Procedure
I studied the physical features of ten creatures and classified them using the key. I completed each section below and recorded the creature's scientific name in the data section.
The Creatures Scientific Names:
1
Fuzzus tallywag
2
Fuzzus pointilus
3
Silkus duosquirmus
4
Fuzzus chompilus
5
Silkus stretchilus
6
Silkus tallyhas
7
Fuzzus feelzalot
8
Silkus monosquirmus
9
Fuzzus squarilus
10
Silkus monowrestle
Have a thrilling Thursday!
~Lola
Answer:
the answer is A because
from tate 4 dozen is 48 and from joe the sixth multiple of eight is 48
