1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
andrew11 [14]
3 years ago
14

How much heat is needed to raise the temperature of 31g of water by 65oC?

Mathematics
1 answer:
frozen [14]3 years ago
4 0
We know, Q = m.c.Δt
Here, m = 31 g
c= 4.186 J / g C
Δt = 65

Substitute their values, 
Q = 31 * 4.186 * 65
Q = 8434.79 J

In short, Your Answer would be 8434.79 Joules

Hope this helps!
You might be interested in
Solve the quadratic equation by completing the square.<br> =+x^2+16x +61=0
Vlad1618 [11]
X^2 + 16x + 61 = 0
x^2 + 16x = -61
x^2 + 16x + 64 = -61 + 64
(x + 8)^2 = 3
x + 8 = (+-) sqrt 3
x = -8 (+-) sqrt 3

x = -8 + sqrt 3...and x = -8 - sqrt 3 <== ur solutions

3 0
3 years ago
PLEASE HELP and explain process
frez [133]

Answer:

Step-by-step explanation:

2.) x= −10 and y= −48

3.) x= −4 and y= −25

4.) x= −5 and y= 0

5.) x= -14/11 and y= -29/11

3 0
3 years ago
Determine if the two given lines are parallel. Answer yes or no. <br> 7x -2y =7 <br> Y= 7/2 x -3
Karo-lina-s [1.5K]
The two given lines are Not Parallel
5 0
3 years ago
Read 2 more answers
Pls help me with this mathematics and I will mark you as brainliest pls asaap pls​
Stella [2.4K]

Answer: answer is 60 a and 60 b all angles are equal

Step-by-step explanation:

3 0
3 years ago
A student has test scores of 68%, 75%, and 79% in a government class. What must she score on the last exam to earn a B (80% or b
FinnZ [79.3K]
68% +75 % +79 % +x ÷4≥ 80%
.68 + .75 + .79+x ÷4* 4 ≥ . 80*4
.68 + .75 + .79+x ≥ 3.2
2.22 + x ≥ 3.2
2.22 -2.22+x ≥ 3.2 -2.22
x ≥ 0.98
She has to get at least 98% to get an B.
3 0
3 years ago
Other questions:
  • Ms. galendez's backyard is a rectangle whose length is twice the width. if the perimeter is 720 ft, what are the dimensions of h
    13·1 answer
  • Jennifer bought 3 yards of fabric and a spool of thread for $28.10.
    15·1 answer
  • There is a 25% chance that a canal will flood during any given year. What is the experimental probability that the canal will fl
    10·1 answer
  • The campus bookstore has estimated that it's profit (in dollars) from selling x hundred basketball conference championship t-shi
    13·1 answer
  • Solve the equation below
    7·1 answer
  • G. x(5x2 - x)<br> Help......
    13·1 answer
  • If a normal distribution has a mean of 104 and a standard deviation of 6 what is the z score for a value of 110?
    10·1 answer
  • Pls help I would really appreciate it
    7·2 answers
  • What is the ratio and diameter of the following Circle 4.2 cm ​
    13·1 answer
  • ?/15•3/5=1/25 what does ? equal.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!