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3 years ago

Why do you think the structure of the heart is unique compared to other organs in the body

Physics

2 answers:

koban [17]3 years ago

4 0

Heart has straited and smooth both muscle tissues while every organ has either one of this

S_A_V [24]3 years ago

3 0

it pumps my blood and if you stab it youll likely die

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In which stage of its lifecycle does a silkworm begin to produce silk thread

IrinaK [193]

Here are the stages of a silkworm lifecycle

1. The female lays the eggs

2. A tiny black Caterpillar hatches out of the egg

3. The Caterpillar eats mulberry leaves and grows bigger, it goes through 4 molts.

4. The Caterpillar spins a cocoon of silk threads

5. inside the cocoon the Caterpillar changes into a pupa

6. The pupa changes into a moth, then the moth comes out

7. The adult moths mate with each other

hope this helps!

5 0

4 years ago

Ikg.

Tcecarenko [31]

Answer:

The mass of G1 at all times during this trial was 0.5 kg.

The velocity of G1 + G2 after the collision was -1.24 m/s.

The momentum of G1 after the collision was -2.10 kg · m/s.

Explanation:

i got it right

6 0

4 years ago

Which statements about fresh water and salt water are true? Check all that apply.

mylen [45]

Answer:

B and D

Explanation:

Fresh water is essential to all life on Earth. Most of Earth's water is stored in the oceans.

6 0

4 years ago

Read 2 more answers

13. A set of pulleys lifts an 800 N crate 4 meters in 7 seconds. What power was used?

kiruha [24]

Answer:power=457.1watts

Explanation:

8 0

4 years ago

Read 2 more answers

Acartravelingat15m/sstartstodeceleratesteadily.Itcomestoacompletestopin10seconds.Whatisit'sacceleration? a. 1500 m/s b. -1.5 m/s

Amiraneli [1.4K]

Answer:

b. -1.5 m/s²

Explanation:

Given the following data;

Initial velocity = 15m/s

Time = 10 seconds.

Since the car came to rest, final velocity = 0m/s

To find acceleration;

In physics, acceleration can be defined as the rate of change of the velocity of an object with respect to time.

This simply means that, acceleration is given by the subtraction of final speed from the initial speed all over time.

Mathematically, acceleration is given by the equation;

$Acceleration (a) = \frac{initial \; speed - final \; speed}{time}$

$a = \frac{v - u}{t}$

Where,

a is acceleration measured in $ms^{-2}$

v and u is initial and final speed respectively, measured in $ms^{-1}$

t is time measured in seconds.

Substituting into the equation, we have;

$Acceleration, a = \frac{0 - 15}{10}$

$Acceleration, a = \frac{-15}{10}$

Acceleration = -1.5 m/s²

6 0

3 years ago