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
GuDViN [60]
3 years ago
14

We cannot work without food why​

Physics
1 answer:
iren [92.7K]3 years ago
7 0

Answer:

Food supplies the body with energy and without energy the body cannot work.

You might be interested in
Assuming that Albertine's mass is 60.0 kg , for what value of μk, the coefficient of kinetic friction between the chair and the
makvit [3.9K]

Answer:

\mu_k=0.101

Explanation:

It is given that,

Mass of Albertine, m = 60 kg

It can be assumed, the spring constant of the spring, k = 95 N/m

Compression in the spring, x = 5 m

A glass sits 19.8 m from her outstretched foot, h = 19.8 m

When she just reach the glass without knocking it over, a force of friction will also act on it. Using the conservation of energy for the spring mass system such that,

\dfrac{1}{2}kx^2=\mu_k mgh

\mu_k=\dfrac{kx^2}{2mgh}

\mu_k=\dfrac{95\times (5)^2}{2\times 60\times 9.8\times 19.8}

\mu_k=0.101

So, the coefficient of kinetic friction between the chair and the waxed floor is 0.101. Hence, this is the required solution.

3 0
3 years ago
Based on Newton’s 3rd Law of motion, if an archer shoots an arrow at the target, the action force is the bowstring against the a
maw [93]

Answer:

maybe target, not sure.

6 0
3 years ago
The particles in the atom that account for most of the mass of the atom are protons and
valkas [14]

Answer:

Neutrons

Explanation:

There are three particles that make up an atom, proton, neutron and electron. The mass of protons and neutrons is considered to be equal though in reality neutrons are heavier than protons; the mass of electrons is very less and ignored in the calculation of atomic mass.

8 0
3 years ago
How have earthquake data been used to explore the size of convection currents in the mantle?
nadezda [96]
 <span>Vibration waves from earth quakes travel through the earth and have measurable speed. And the different temperatures and fluidity of the various regions of the mantle will change that speed and or reflect the vibration waves in different directions. With multiple vibration sensors around the world the time that it takes for vibrations to travel from one part of the world to another will tell you what is inside.</span>
8 0
3 years ago
A car is traveling south at a speed of 54 miles per hour and then begins traveling at a speed of 55 miles per hour but continues
Kazeer [188]

Explanation:

VELOCITY: BECAUSE ITS A VECTOR QUANTITY

7 0
3 years ago
Other questions:
  • The length of a rectangular sheet of metal decreases by 34.5 cm. Its width decreases proportionally. If the sheets original widt
    11·1 answer
  • PLEASE HELP NEED TO KNOW IF CORRECT!! BRAINLIEST ANSWER WILL BE REWARDED.
    10·1 answer
  • Which of the following statements correctly describes the position of the intake and exhaust valves during most of the power sta
    8·2 answers
  • A roller coaster track is 3000 meters long. It takes 100 seconds to travel once around the roller coaster. What is the average s
    13·2 answers
  • A 5.00-g bullet leaves the muzzle of a rifle with a speed of 320 m/s. the expanding gases behind it exert what force on the bull
    13·1 answer
  • A 50.6 g ball of copper has a net charge of 1.6 µc. what fraction of the copper's electrons have been removed? (each copper atom
    11·1 answer
  • To do work, this truck uses energy stored in chemical
    10·1 answer
  • Pete is driving down 7th Street. He drives 300 meters in 18 seconds. Assuming he does not speed up or slow down, what is his spe
    12·1 answer
  • A 2-kg object is moving at 3 m/s. A 4-N force is applied in the direction of motion and if the object has a final velocity 7m/s.
    10·1 answer
  • A sinusoidal sound wave moves through a medium and is described by the displacement wave function
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!