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
tia_tia [17]
3 years ago
9

What mechanisms help the body conserve heat?

Physics
2 answers:
Brut [27]3 years ago
7 0
One of the mechanisms that help the body to conserve its heat is the slowing down of the blood flow towards the parts of the body exposed to cold temperatures. Another is to shiver when it is cold to keep the warmth of the body through movement. 
weqwewe [10]3 years ago
5 0
The mechanisms that are used to help the body conserve heat are vasoconstriction and shivering. Vasoconstriction occurs when the blood vessels constrict causing the blood pressure to rise. Shivering occurs when the body becomes cold and it helps to maintain homeostasis.
You might be interested in
How are the concepts of impulse and momentum related?
butalik [34]

Answer:

The impulse experienced by the object equals the change in momentum of the object. In equation form, F • t = m • Δ v. In a collision, objects experience an impulse; the impulse causes and is equal to the change in momentum. ... The collision would change the halfback's speed and thus his momentum.

Explanation:

4 0
3 years ago
LOTS OF POINTSA rocket of mass 40 000 kg takes off and flies to a height of 2.5 km as its engines produce 500 000 N of thrust.
Svetradugi [14.3K]

Answer:

i) E = 269 [MJ]    ii)v = 116 [m/s]

Explanation:

This is a problem that encompasses the work and principle of energy conservation.

In this way, we establish the equation for the principle of conservation and energy.

i)

E_{k1}+W_{1-2}=E_{k2}\\where:\\E_{k1}= kinetic energy at moment 1\\W_{1-2}= work between moments 1 and 2.\\E_{k2}= kinetic energy at moment 2.

W_{1-2}= (F*d) - (m*g*h)\\W_{1-2}=(500000*2.5*10^3)-(40000*9.81*2.5*10^3)\\W_{1-2}= 269*10^6[J] or 269 [MJ]

At that point the speed 1 is equal to zero, since the maximum height achieved was 2.5 [km]. So this calculated work corresponds to the energy of the rocket.

Er = 269*10^6[J]

ii ) With the energy calculated at the previous point, we can calculate the speed developed.

E_{k2}=0.5*m*v^2\\269*10^6=0.5*40000*v^2\\v=\sqrt{\frac{269*10^6}{0.5*40000} }\\ v=116[m/s]

8 0
2 years ago
You are standing on the SCALE<br> The scale is on the floor.<br> What are the forces on the SCALE?
ehidna [41]

Answer:

The Normal and Gravitational Force

Explanation:

The normal force pushes up and is between the ground and the scale. The gravitational force is the force exerted on the ground.

3 0
3 years ago
Read 2 more answers
Tyson throws a shot put ball weighing 7.26 kg. At a height of 2.1 m above the ground, the mechanical energy of the ball is 172.1
max2010maxim [7]

Answer:

2.5 m/s

Explanation:

Mechanical energy is the sum of the potential and kinetic energy.

E = PE + KE

E = mgh + ½mv²

172.1 J = (7.26 kg) (9.8 m/s²) (2.1 m) + ½ (7.26 kg) v²

v = 2.5 m/s

7 0
2 years ago
Read 2 more answers
What forces act to pull the poles of a magnet together, or to push them apart?​
masya89 [10]

Answer:

Gravity,

I hope this correct

4 0
3 years ago
Other questions:
  • Which of the following statements is TRUE for high-visibility clothing? A. High-visibility clothing helps to reduce insect probl
    5·2 answers
  • What are the characteristics of the radiation emitted by a blackbody? According to Wien's Law, how many times hotter is an objec
    7·1 answer
  • A flow of electricity that constantly reverses direction. In the United States it reverses itself 120 times per second.
    7·1 answer
  • A train leaves the train station at noon and travels at a constant speed of vt = 50 mi/hr on a straight track. 2 hr later, a car
    12·1 answer
  • An aluminum cup of mass 150 g contains 800 g of water in thermal equilibrium at 80.0°C. The combination of cup and water is cool
    8·1 answer
  • What does the energy of an electromagnetic wave depend on?
    9·1 answer
  • 13. How many electrons does a complete third electron shell hold?
    8·1 answer
  • Dimension of radius of sphere​
    7·1 answer
  • CAN SOMEONE PLS HELP ME ILL GIVE YOU BRAINLIEST
    5·2 answers
  • A charged particle moves through a velocity selector at a constant speed in a straight line. The electric field of the velocity
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!