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
DIA [1.3K]
3 years ago
15

Where does energy come from that fuels our physical activity

Physics
2 answers:
Lelechka [254]3 years ago
8 0

The energy that fuels the processes inside our bodies and everything we do with our bodies comes from chemical energy stored in what we eat.

But that only raises another question:  Where does the chemical energy in our food come from ?

If you follow it back far enough, eventually it ALL comes from the sun.

joja [24]3 years ago
7 0

Energy comes from the Sun, plants and animals that we eat, to provide us with nutrients we need for energy.


You might be interested in
Can someone help :3 dis is hard
Murrr4er [49]
C is the correct answer beacause it shows where it is happening in this cas “here”.
8 0
3 years ago
A pulley is able to lift a mass of 25 kg 0.30 m with an applied force of 50 N over a distance of 1.5 m. What is the ideal mechan
spin [16.1K]

The ideal mechanical advantage of the pulley system is 3

7 0
3 years ago
Where does cosmic microwave background radiation come from? A. It is radiation produced by pulsars and black holes that warps ou
LuckyWell [14K]

Answer:

C. It is radiation leftover from the Big Bang

3 0
3 years ago
Margaret wants to go for a swim, and decides to jump in using the diving board that measures 3-m long.
otez555 [7]

Answer:

The horizontal component of her velocity is approximately 1.389 m/s

The vertical component of her velocity is approximately 7.878 m/s

Explanation:

The given question parameters are;

The initial velocity with which Margaret leaps, v = 8.0 m/s

The angle to the horizontal with which she jumps, θ = 80° to the horizontal

The horizontal component of her velocity, vₓ = v × cos(θ)

∴ vₓ = 8.0 × cos(80°) ≈ 1.389

The horizontal component of her velocity, vₓ ≈ 1.389 m/s

The vertical component of her velocity, v_y = v × sin(θ)

∴ v_y = 8.0 × sin(80°) ≈ 7.878

The vertical component of her velocity, v_y ≈ 7.878 m/s.

6 0
3 years ago
how will resistance change when the voltage increases in an electric circuit if the current remains constant
Yakvenalex [24]
V=IR
Potential Difference (v)= Current (A) * Resistance (Ω)
As V increases, R also increases.
3 0
3 years ago
Other questions:
  • Which one of the following situations is not possible?
    6·1 answer
  • What is the weight of an object on earth that has a mass of 45kg
    12·1 answer
  • A bookshelf is 2m long, with supports at its end (p and q). A book weighing 10N is placed in the middle of the shelf. what are t
    13·1 answer
  • Assume a beam of light hits the boundary separating medium 1, with index of refraction n1 and medium 2, with index of refraction
    13·1 answer
  • A woman is riding a bicycle at 18.0 m/s along a straight road that runs parallel to and right next to some railroad tracks. She
    9·1 answer
  • If you increase the surface area of a rock, how will it affect the rate at which it weathers? a. It will weather more quickly. b
    8·1 answer
  • Pls help me ASAP it is for a final I dont understanddddd<br> Real help
    5·2 answers
  • A spring stretches from 10cm to 22cm when a force of 4n is applied, if it obeys Hooke’s law,its total length in cm when a force
    9·1 answer
  • How is biomass used as fuel?
    14·1 answer
  • Which letter explains why no machine is 100 percent efficient.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!