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3 years ago

Which gland is being described?

Physics

2 answers:

iren2701 [21]3 years ago

4 0

Answer:

Explanation:

Helps the body to respond to emergency events : Adrenal Gland

It secretes the hormone adrenaline which increases pulse rate , heart beat etc. in case of emergency .

Helps control the amount of sugar in the blood : Pancreas which secretes insulin and glucagon which controls amount of sugar in the blood.

Develops secondary sex characteristics : testes in male which secretes testosterone and estrogen in ovaries in female .

Ludmilka [50]3 years ago

3 0

Answer:

Adrenal Gland, pancreas, and testes

Explanation:

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A small mailbag is released from a helicopter that is descending steadily at 3 m/s.

mario62 [17]

Answer:

a) Speed of mailbag after 3 seconds = 32.4 m/s

b) Package is 44.1 meter below helicopter

c) If the helicopter was rising steadily at 3.00 m/s

Speed of mailbag after 3 seconds = 26.4 m/s

Package is 44.1 meter below helicopter

Explanation:

a) We have equation of motion, v = u + at, where v is the final velocity, u is the initial velocity, a is the acceleration and t is the time taken.

Initial velocity = 3 m/s, acceleration = 9.8 $m/s^2$ and time = 3 seconds.

v = 3+9.8*3 = 32.4 m/s

Speed of mailbag after 3 seconds = 32.4 m/s

b) We have equation of motion , $s= ut+\frac{1}{2} at^2$ , s is the displacement, u is the initial velocity, a is the acceleration and t is the time.

Velocity of helicopter = 3 m/s, time taken = 3 seconds, acceleration = 0 $m/s^2$ .

$s= 3*3+\frac{1}{2} *0*3^2\\ \\ s=9m$

Distance traveled by helicopter = 9 meter.

Velocity of package = 3 m/s, time taken = 3 seconds, acceleration = 9.8 $m/s^2$ .

$s= 3*3+\frac{1}{2} *9.8*3^2\\ \\ s= 53.1m$

Distance traveled by package = 53.1 meter.

So package is (53.1-9)meter below helicopter = 44.1 m

c) Initial velocity = -3 m/s, acceleration = 9.8 $m/s^2$ and time = 3 seconds.

v = -3+9.8*3 = 26.4 m/s

Speed of mailbag after 3 seconds = 26.4 m/s

Velocity of helicopter = -3 m/s, time taken = 3 seconds, acceleration = 0 $m/s^2$ .

$s= -3*3+\frac{1}{2} *0*3^2\\ \\ s=-9m$

Distance traveled by helicopter = 9 meter.

Velocity of package = -3 m/s, time taken = 3 seconds, acceleration = 9.8 $m/s^2$ .

$s= -3*3+\frac{1}{2} *9.8*3^2\\ \\ s= 35.1m$

Distance traveled by package = 35.1 meter.

So package is (35.1+9)meter below helicopter = 44.1 m

4 0

4 years ago

By what primary method of heat transfer does the sun warm the earth?

GenaCL600 [577]

Sun warms the earth with Electromagnetic Radiations.

Sun emits out short range radiation in the form of Electromagnetic (EM) Radiation. Our Atmosphere is transparent to EM radiation. It does not heats up the atmosphere but when it collide with the solid objects or particles it is absorbed, reflected or refracted and the object heats up and start emitting radiation in the form of long wave radiation. Our Earth does the same. The long wave radiation emitted by the earth surface is absorbed by our atmosphere and it heats up. Therefore, we can say our atmosphere is heated from below.

5 0

3 years ago

Consider a series rlc circuit where r = 45.0 ω, c = 15.5 μf, and l = 0.0940 h, driven at a frequency of 50.0 hz. determine the p

givi [52]

$R = 45 \ \Omega. \newline C = 15.5 \ \mu F = 15.5 \cdot 10^{-6} \ F.\newline l = 0.0940 \ H.\newline \nu = 50 \ Hz. \newline \newline x_{l} = 2 \pi \nu l = 2 \pi \cdot 50 \cdot 0.0940 = 29.5309709437 \approx 29.5 \ \Omega. \newline x_{c} = \frac{1}{2 \pi C \nu} = \frac{1}{2 \pi \cdot 15.5 \cdot 10^{-6} \cdot 50} = 0.00486946861 \approx 0.005 \ \Omega. \newline Z = \sqrt{R^{2}+(x_{l}-x_{c})^{2}} = \sqrt{45^{2}+(29.5-0.005)^{2}} = 53.8047862648 \approx 54 \ \Omega. \newline \newline \cos(\theta) = \frac{R}{Z} = \frac{45}{54} = 0.8\bar{3} \Rightarrow \arccos(0.8\bar{3}) = 33.5573098 \approx 33.5 \textdegree.$

7 0

4 years ago

. How does a simple cell work????

Delvig [45]

A simple cell can be made by connecting two different metals in contact with an electrolyte. A number of cells can be connected in series to make a battery , which has a higher voltage than a single cell. In non-rechargeable cells, eg alkaline cells, a voltage is produced until one of the reactants is used up

5 0

3 years ago

You are creating waves in a rope by shaking your hand back and forth. Without changing the distance your hand moves, you begin t

scoundrel [369]

Answer:

Amplitude - remains the same

Frequency - increases

Period - decreases

Velocity - remains the same.

Explanation:

The amplitude of the wave remains the same since you are not changing the distance your hand moves and the amplitude of the wave depends on how much distance your hand covers while moving.

The frequency of your wave increases since now you are moving your hand more number of times in the same period i.e. your hand is moving faster in one second. So, the frequency of your wave increases.

The period is the time taken by the wave to travel a certain distance. Since your hand is now moving faster, the wave will travel faster and will take less time to cover the same distance hence, we can say that its period will decrease.

The velocity of a wave depends on the medium in which it is travelling. Your wave was previously travelling in air and the new wave is also travelling in the same medium so the velocity of the wave remains unchanged.

7 0

3 years ago