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2 years ago

What kind of mirror is used in automobiles and trucks

Physics

1 answer:

nikdorinn [45]2 years ago

8 0

Convex mirrors are used.

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A loaf of bread is removed from an oven and is left sitting in the kitchen to cool. Its temperature t minutes after being remove

Darya [45]

<h2>Answer:</h2>

(a). 73° C.

(b). 176° C.

(c). 93.02°C.

<h2>Explanation:</h2>

In the question,

We have been given an equation,

$T(t) = 103e^{-0.0182t}+73.$

(a).

We need to find the temperature of the kitchen,

So,

Time, t → ∞

On putting the value of t as infinite in the equation we get,

$T(\infty)=103e^{-0.0182*\infty}+73\\T(\infty)=103*0+73\\T(\infty)=0+73\\T(\infty)=73\\$

Therefore, the temperature of the Kitchen is 73° C.

(b).

The initial temperature of the bread when it is removed from the oven is at, t = 0 s

So,

On putting the value of t = 0, we get,

$T(t) = 103e^{-0.0182t}+73.\\T(0)=103e^{-0.0182\times 0} + 73\\T(0)=103+73\\T(0)=176$

Therefore, the initial temperature of the bread is 176° C.

(c).

On putting the value of t = 90 minutes, we get,

$T(t) = 103e^{-0.0182t}+73.\\T(90)=103e^{-0.0182\times 90} + 73\\T(90)=20.0199+73\\T(90)=93.02$

Therefore, the temperature of the bread after 90 minutes is 93.02°C.

8 0

3 years ago

Is baking soda less dense or more dense than water?

boyakko [2]

It’s more dense than air and less dense than liquid!

6 0

2 years ago

Which section of the reaction represents the reactants? A) a B) b C) c D) d

ivann1987 [24]

This question is incomplete, but I can do it for you, considering the equation to be *In its most famous form*:
A+B⇒C+D
A and B here are the reactants, while C and D are the products.
The reactants are generally the input materials in the beginning of any chemical reactions and they usually, if not always, are on the left hand side of the chemical equation. While the products are on the right hand side and are the final output of the chemical reaction.

Hope this helps.

3 0

2 years ago

Read 2 more answers

WILL MARK BRAINLIEST IF RIGHT & HAS EXPLINATION

Colt1911 [192]

Answer:

s= 64m I'm not 100% sure

Explanation: like 97.9%

7 0

3 years ago

This illustration represents the compoundA)carbon oxide.B)carbon dioxide.C)carbon monoxide.EliminateD)monocarbon oxide.

pentagon [3]