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
Rus_ich [418]
3 years ago
11

During light activity, a 70-kg person may generate 200 kcal

Physics
1 answer:
Lerok [7]3 years ago
3 0

Answer:

2.75387\ ^{\circ}

Explanation:

m = Mass of person = 70 kg

c = Specific heat of human body = 0.83\ J/kg^{\circ}C

\Delta T = Change in temperature

Time taken is 1 hour

Heat is given by

Q=mc\Delta T\\\Rightarrow \Delta T=\dfrac{Q}{mc}\\\Rightarrow \Delta T=\dfrac{0.8\times 200\times 1}{70\times 0.83}\\\Rightarrow \Delta T=2.75387\ ^{\circ}C

The rise in temperature is 2.75387\ ^{\circ}C

You might be interested in
When an electron moves 2.5 m in the direction of an electric field, the change in electrical potential energy of the electron is
anygoal [31]
In the field of electromagnetism, when two charged plates that are situated opposite to each other by a certain distance, it forms an energy called the electric field. This energy is due to the difference in potential energy with respect to distance. Thus,

E = V/d

However, the voltage in volts is energy per coulomb. Thus,
V = (8x10-17 J/electron)*(1electron/1.60218x10^-19 C)
V = 499.32 volts

Therefore,

E = 499.32 volts /2.5 m
E = 199.73 N/C

The electric field that caused the change in potential energy is equal to 199.73 Newtons per Coulomb.
7 0
3 years ago
When will he love me 
kipiarov [429]
Put a fork under your pillow tonight, and your wish will come true tomorrow.
4 0
2 years ago
Read 2 more answers
The surface area of a postage
ANTONII [103]

Answer:

608

Explanation:

Trust me

4 0
2 years ago
Read 2 more answers
Which statement is not correct about force.
BlackZzzverrR [31]

Answer:

c

Explanation:

without force motion won't take place

4 0
2 years ago
A soccer player heads the ball and sends it flying vertically upwards at a speed of 18.0 m/s . How high above the players ' head
Irina-Kira [14]

Answer:

16.53 m

Explanation:

The following data were obtained from the question:

Initial velocity (u) = 18.0 m/s.

Final velocity (v) = 0 m/s

Acceleration due to gravity (g) = 9.8 m/s²

Maximum height (h) =.?

The maximum height reached by the ball can be obtained as follow:

v² = u² – 2gh (since the ball is going against gravity)

0² = 18² – (2 × 9.8 × h)

0 = 324 – 19.6h

Rearrange

19.6h = 324

Divide both side by 19.6

h = 324 / 19.6

h = 16.53 m

Therefore, the maximum height reached by the ball is 16.53 m

6 0
3 years ago
Other questions:
  • What is <img src="https://tex.z-dn.net/?f=sin%5E%7B-1%7D%280.61%29%3F" id="TexFormula1" title="sin^{-1}(0.61)?" alt="sin^{-1}(0.
    6·1 answer
  • As water changes state,the mass of the sample does not change.the size of the water molecules_______
    8·1 answer
  • A ledge on a building is 20 m above the ground. A taut rope attached to a 4.0 kg can of paint sitting on the ledge passes up ove
    15·1 answer
  • The temperature in the upper atmosphere is -2°C, and the temperature on Earth’s surface is 5°C. Which type of weather is most li
    14·2 answers
  • I need help!!!!!!!!! Somebody please help me!!!!!!!!!!!!!
    12·1 answer
  • Why are light intensity, carbon dioxide concentration and temperature liimiting factors​
    11·1 answer
  • What quantity is measured on the x-axis of a position vs. time graph.
    12·1 answer
  • In motion pictures, what do you call the lens manipulation where the focus quickly changes from one subject to the next in a mot
    8·1 answer
  • Find the wavelength of light given off by a hydrogen atom when its electron drops from the n = 4 to n = 1 energy level
    9·1 answer
  • what is the frequency of the photon emitted by a hydrogen atom when its electron drops from the n = 6 to n = 4 energy level?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!