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
PIT_PIT [208]
3 years ago
10

Why do we eat today

Physics
2 answers:
Dafna11 [192]3 years ago
6 0
We eat in order to survive
earnstyle [38]3 years ago
3 0
Because if we don't you'll be hungry, if you don't eat for about a month you'll die
You might be interested in
What is the changing of the position of an object relative to a point of reference
Bond [772]
The displacement ........................
5 0
3 years ago
How many joules of heat must be transferred to a 410-g aluminum pizza pan to raise its temperature from 32oC to 232oC? The speci
xxTIMURxx [149]

Answer:

recall that heat absorbed released is given by

Q = mc*(T2 - T1)

where

m = mass (in g)

c = specific heat capacity (in J/g-k)

T = temperature (in C or K)

*note: Q is (+) when heat is absorbed and (-) when heat is released.

substituting,

Q = (480)*(0.97)*(234 - 22)

Q = 98707 J = 98.7 kJ

Explanation:

3 0
3 years ago
Which law represents the thermodynamic statement of the conservation of energy of a system
Tresset [83]
The law of conservation of energy is a law of science that states that energy cannot be created or destroyed, but only changed from one form into another or transferred from one object to another.<span>

</span>
3 0
3 years ago
A driver in a 2290-kg car car traveling at 42.7 m/s slams on the brakes and skids to a stop. If the coefficient of friction betw
8_murik_8 [283]

Answer:

126.56 m

Explanation:

Applying,

-F = ma............. Equation 1

Where F = frictional force, m = mass of the car, a = acceleration.

Note: Frictional force is negative because it act in opposite direction to motion

But,

F = mgμ.......... Equation 2

Where g = acceleration due to gravity, μ = coefficient of friction

Substitute equation 2 in equation 1

-mgμ = ma

a = -gμ.............. Equation 3

From the question,

Given: μ = 0.735

Constant: 9.8 m/s²

Substitute these values in equation 3

a = -9.8×0.735

a = -7.203 m/s²

Finally,

Applying

v² = u²+2as.............. Equation 4

Where v = final velocity, u = initial velocity, s = distance

From the question,

Given: u = 42.7 m/s, v = 0 m/s (to a stop), a = -7.203 m/s²

Substitute these values into equation 4

0² = 42.7²+2(-7.203)s

-1823.29 = -14.406s

s = -1823.29/-14.406

s = 126.56 m

4 0
3 years ago
A flying stationary kite is acted on by a force of 9.8 N downward. The wind exerts a force of 45 N at an angle of 50.0 degrees a
Savatey [412]

Answer:

38 N, 40.0° below the horizontal

Explanation:

Force exerted by an object equals mass times acceleration of that object: F = m ⨉ a. To use this formula, you need to use SI units: Newtons for force, kilograms for mass, and meters per second squared for acceleration.

7 0
2 years ago
Other questions:
  • When an object is solely under the influence of conservative forces, the sum of its kinetic and potential energies does not chan
    8·1 answer
  • 10. The energy of moving objects is called
    5·2 answers
  • The unit for measuring the rate at which light energy is radiated from a source is the
    5·1 answer
  • A monkey weighs 6.00 x 102 N and swings from vine to vine. As the monkey grabs a new vine, both vines make an angle of 35.0° wit
    13·1 answer
  • A roller coaster starts from rest at point a and continues to point b on a frictionless track. what best describes the changes i
    9·2 answers
  • Hey what is Krichoff rule<br>good morning​
    13·2 answers
  • Voltage is 50v and capacitance is 30c what is the charge<br>​
    5·1 answer
  • Which materials are most thick ? Please help
    12·1 answer
  • I HAVE NOOOO IDEA!!!!!!!!!! HELP!!!!!!!!!!
    6·1 answer
  • An astronomer observes two ordinary stars. the first one turns out to be twice as hot as the second. this means that the first o
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!