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
34kurt
3 years ago
10

How many "big c" calories does it take to raise the temperature of 2.00 l of water from 22.0 c to 40.0 c?

Physics
1 answer:
nignag [31]3 years ago
7 0

given that

mass of water = 2 L = 2000 gram

now we can use

heat required to raise the temperature

Q = mC\Delta T

C = 1 cal/g C

\Delta T = 40 - 22 = 18

now from above formula

Q = 2000* 1 * 18

Q = 36000 Cal

so above is the heat required to raise the temperature

You might be interested in
The main difference between obsessive-compulsive personality disorder (OCPD) and obsessive-compulsive disorder (OCD) is that ___
maksim [4K]

Answer:

B. people with OCD know their disorder is irrational

Explanation:

Got it right

6 0
2 years ago
Read 2 more answers
A light-rail commuter train accelerates at a rate of 1.35 m/s. D A 33% Part (a) How long does it take to reach its top speed of
Dennis_Churaev [7]

Answer:

a) 17.49 seconds

b) 13.12 seconds

c) 2.99 m/s²

Explanation:

a) Acceleration = a = 1.35 m/s²

Final velocity = v = 85 km/h = 85\frac{1000}{3600}=23.61\ m/s

Initial velocity = u = 0

Equation of motion

v=u+at\\\Rightarrow 23.61=0+1.35t\\\Rightarrow t=\frac{23.61}{1.35}=17.49\ s

Time taken to accelerate to top speed is 17.49 seconds.

b) Acceleration = a = -1.8 m/s²

Initial velocity = u = 23.61\ m/s

Final velocity = v = 0

v=u+at\\\Rightarrow 0=23.61-1.8t\\\Rightarrow t=\frac{23.61}{1.8}=13.12\ s

Time taken to stop the train from top speed is 13.12 seconds

c) Initial velocity = u = 23.61 m/s

Time taken = t = 7.9 s

Final velocity = v = 0

v=u+at\\\Rightarrow 0=23.61+a7.9\\\Rightarrow a=\frac{-23.61}{7.9}=-2.99\ m/s^2

Emergency acceleration is 2.99 m/s² (magnitude)

6 0
2 years ago
Please select the word from the list that best fits the definition
vagabundo [1.1K]

Answer:input work

Explanation:

7 0
2 years ago
Read 2 more answers
Complete the following table with the appropriate units of measurement. Word bank: gram, meter, kelvin, liter, second, grams/cm3
lara31 [8.8K]

mass gram, time sec, temp kelvin, vol liter, dens grams/cm3

5 0
3 years ago
Read 2 more answers
3. Discuss the main purpose of Experiment" Explain the greatest advantage of experiment in psychology?
Scrat [10]

Answer:

Social psychologists utilize experimental techniques to study how people are influenced by groups. Health psychologists rely on experimentation and research to better understand the factors that contribute to wellness and disease.

Explanation:

7 0
3 years ago
Other questions:
  • A cylinder shaped jar has a radius of 2 cm and a hight of 6 cm what the volume of the jar
    12·1 answer
  • Calculate the Force of Gravity acting on an object that has a mass of 1.3 kg. The object is on Earth so use 9.8m/s2 for the acce
    6·1 answer
  • Which electromagnetic wave has the lowest frequencies (less than 3..*.10 © hertz)?
    5·1 answer
  • At a point 1.2 m out from the hinge, 14.0 N force is exerted at an angle of 27 degrees to the moment arm in a plane which is per
    10·1 answer
  • Give two examples of workplace environments where considerations must be made with respect to the possibility of electric discha
    9·1 answer
  • If you wanna make it easier you can number them going down 1,2,3, or 4 & just tell me the number
    13·1 answer
  • Complete the sentence below using one of the following
    13·1 answer
  • A 1,000 kg truck initially had a velocity of 9 m/s. A force acts on it for a duration of time. After that force, the truck now h
    7·1 answer
  • What do you think a force diagram might look like for a hit that causes a concussion? Draw a diagram. Consider only the person’s
    6·1 answer
  • Your chances of getting into a collision when talking on a cell phone _________: A. Double B. Triple C. Quadruple D. Remain the
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!