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Brilliant_brown [7]
2 years ago
15

What amount of heat is required to raise the temperature of 5 kg of water through 20° c?​

Mathematics
1 answer:
allochka39001 [22]2 years ago
7 0

Answer:

420,000 J/Kg

Step-by-step explanation:

energy= temperature change* mass* specific heat capacity

energy= 20*5*4200

energy= 420,000

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Help please I don’t get this
Leviafan [203]

Answer:

$2.35 for one video

Step-by-step explanation:

You set up two equations:

$7.50= p + 2v

$12.20= p + 4v

You then set both equal to p

p=-4v+12.20 and p=-2v+7.50

So you can set them equal to each other and solve for v (the cost of one video)

v= $2.35  

6 0
2 years ago
A candle maker plans to make 30 orange candles. She mixes wax to create a specific shade of orange. The ratio of each color in h
otez555 [7]

Answer:2.5 part

Step-by-step explanation:

Given

Candle maker requires 1 quart of wax to make 6 candles

If candle maker makes 30 candles then 5 quart of wax is needed

The quart is made up of 2 part of red+ 5 parts of yellow + 3 Parts of white

i.e. total of 10 parts is required to make orange shade

Yellow is 5 part out of 10 part so

yellow will be 2.5 part in 5 quart  

8 0
3 years ago
What is the product?
sveticcg [70]

Answer:

third answer is correct

Step-by-step explanation:

hello,

we need to compute

5*(-1)+(-2)*(-1)=-5+2=-3

-6*(-1)+(2)*(-1)=6-2=4

so the correct answer is

   -3

    4

hope this helps

8 0
3 years ago
How do I find the value of x for a triangle​
siniylev [52]

Answer:

a+b+c=180

Step-by-step explanation:

If you already have the first 2 values, add them together and subtract that number from 180. The total of all angles added together should always equal 180.

7 0
3 years ago
Franklin measured and labeled the angles of a triangle as shown. Jennifer says that at least one of his measures is incorrect. E
ioda

Answer:

see the explanation

Step-by-step explanation:

First way

we know that

The sum of the interior angles of a triangle must be equal to 180 degrees

so

In this problem

37+97+134 > 180

therefore

At least one of Franklin's measures is incorrect

Second way

we know that

A triangle can only have at most one obtuse internal angle.

In this problem the triangle has two obtuse internal angles

Remember that an obtuse angle is an angle greater than 90 degrees

therefore

At least one of Franklin's measures is incorrect

6 0
2 years ago
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