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3 years ago

Which part of the brain controls body temperature

2 answers:

5 0

<span>Hormone: a chemical message released in the bodyby cells and glands that affects other cells in an organism. Hypothalamus: a part of the brain thatcontrols things like thirst, hunger, body temperature, and the release of many hormones.</span>

larisa86 [58]3 years ago

5 0

Homeostasis: the ability to keep a system at a constant condition. Hormone: a chemical message released in the body by cells and glands that affects other cells in an organism. Hypothalamus: a part of the brain that controls things like thirst, hunger, body temperature, and the release of many hormones.
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Quick! how did Daniel hale Williams contribute to science?

My name is Ann [436]

He preformed the first ever successful open heart surgery

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3 years ago

Einstein calculated that ripples of gravity travel at exactly the speed of _____

damaskus [11]

Answer:

299,792,458 m/s = speed of light

Explanation:

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3 years ago

Why is carbon added to iron

swat32

Answer:

it transforms it into high carbon alloy that is harder and can be sharper but is also more brittle in the process.

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3 years ago

Mercury has a radial acceleration of 3.96 × 10−2 m/s2 and its orbital period is T = 88 days. What is the radius of Mercury’s orb

Maslowich

Answer: 58,045,522,878.8 meters

Explanation:

Ok, the data we have is

Period = T = 88 days

Radial acceleration = ar = 3.96x10^-2 m/s^2

And we know that the equation for the radial acceleration is:

ar = v^2/r = r*w^2

Where v is the velocity. r is the radius and w is the angular velocity.

And we know that:

w = 2*pi*f

where f is the frequency, and:

T = 1/f.

Then we can write:

w = 2*pi/T

and our equation becomes:

ar = r*(2*pi/T)^2

Now we solve this for r.

First we need to use the same units in both equations, so we want to write T in seconds.

T = 88 days,

A day has 24 hours, and one hour has 3600 seconds:

T = 88*24*3600 s =7,603,200s

Then:

3.96x10^-2 m/s^2 = r*(2*3.14/7,603,200s)^2

r = (3.96x10^-2 m/s^2) /(2*3.14/7,603,200s)^2 = 58,045,522,878.8 meters

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3 years ago

A person looking out the window of a stationary train notices that raindrops are falling vertically down at a speed of 3.84 m/s

JulijaS [17]

Answer:

the train is moving at the speed of v = 1.79 m/s

Explanation:

given,

rain drop is falling vertically down with the speed of = 3.84 m/s

angle of the rain drop = 25°

tan θ = $\dfrac{v}{u}$

tan 25° = $\dfrac{v}{3.84}$

v =3.84 × tan 25°

v = 1.79 m/s

hence, the train is moving at the speed of v = 1.79 m/s

3 0

3 years ago