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Alexus [3.1K]
2 years ago
9

Help me and I will be your friend forever.

Physics
1 answer:
maks197457 [2]2 years ago
8 0

Answer:

1. iodine

2. convection

3. radiation

4. conduction

5. gases

6. expansion

7. freezing point

8. absorber

9. thermos flask

10. mercury

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A 60 kg person sits in a chair. How much does the earth pull on the person? (Acceleration due to gravity is -10m/s2) F = mxa → F
MA_775_DIABLO [31]

Answer:

<em>600N(downwards)</em>

Explanations

<em>600N(downwards)</em>

Mas of the person = 60kg

Acceleration due to gravity = -10m/s²

To get the earths pull on the person, we will use the Newton second law of motion;

Force = mass * acceleration;

Force = 60 * -10

Force- -600N

<em>Hence the earth gravitational pull on the person is 600N(downwards). It is downwards due to the negative sign.</em>

<em></em>

7 0
3 years ago
The production of heat by metabolic processes takes place throughout the volume of an animal, but loss of heat takes place only
Sever21 [200]

To solve this problem we will apply the concepts related to the change in length in proportion to the area and volume. We will define the states of the lengths in their final and initial state and later with the given relationship, we will extrapolate these measures to the area and volume

The initial measures,

\text{Initial Length} = L

\text{Initial surface Area} = 6L^2 (Surface of a Cube)

\text{Initial Volume} = L^3

The final measures

\text{Final Length} = L_f

\text{Final surface area} = 6L_f^2

\text{Final Volume} = L_f^3

Given,

\frac{(SA)_f}{(SA)_i} = 2

Now applying the same relation we have that

(\frac{L_f}{L_i})^2 = 2

\frac{L_f}{L_i} = \sqrt{2}

The relation with volume would be

\frac{(Volume)_f}{(Volume)_i} = (\frac{L_f}{L_i})^3

\frac{(Volume)_f}{(Volume)_i} = (\sqrt{2})^3

\frac{(Volume)_f}{(Volume)_i} = (2\sqrt{2})

\frac{(Volume)_f}{(Volume)_i} = 2.83

Volume of the cube change by a factor of 2.83

6 0
4 years ago
does the pair of equilibria produced by a saddle-node bifurcation have to consist of one that is stable and one that is unstable
Amiraneli [1.4K]

This bifurcation is called a saddle-node bifurcation. In it, a pair of hyperbolic equilibria, one stable and one unstable, coalesce at the bifurcation point, annihilate each other and disappear.

<h3>What is a bifurcation equilibria?</h3>
  • The mathematical study of changes in a family of curves' qualitative or topological structure, such as the integral curves of a family of vector fields or the solutions to a family of differential equations, is known as bifurcation theory.
  • A bifurcation happens when a tiny, gradual change in a system's parameter values (the bifurcation parameters) results in an abrupt, "qualitative," or topological change in the system's behavior.
  • This term is most frequently used to refer to the mathematical study of dynamical systems.
  • Both continuous systems (represented by ordinary, delay, or partial differential equations) and discrete systems can experience bifurcations (described by maps).

To learn more about bifurcation equilibria, refer to

brainly.com/question/14728055

#SPJ4

3 0
2 years ago
What is the magnetic force on a proton that is moving at 4.5 107 m/s to the right through a magnetic field that is 1.6 T and poi
pickupchik [31]
The answer is letter C. 1.2 10^-11 N up
Solution:
F= Bqvsin(theta)
theta = sin 90 = 1
F= 1.4 T * 1.6x10^-19 * 5.2x10^7 ms^-1
F= 1.16 x 10^-11 N
Then the direction is upward.
6 0
3 years ago
Read 2 more answers
Once a baseball has been hit into the air, what forces are acting upon it?
gladu [14]
Gravity and momentum 
3 0
3 years ago
Read 2 more answers
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