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

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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step-by-step explanation:

1. x> -5

2. x< 8

step-by-step explanation:

1. 2x> -10

divide by 2 from both sides of equation.

2x/2> -10/2

simplify, to find the answer.

-10/2=-5

x> -5 is the correct answer.

2. 3x< 24

divide by 3 from both sides of equation.

3x/3< 24/3

simplify, to find the answer.

24/3=8

x< 8 is the correct answer.

i hope this you, and have a wonderful day!