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3 years ago

The table below shows some characteristics of three different types of muscles.

Physics

2 answers:

Neko [114]3 years ago

8 0

Mark the other person as brainest I was gonna answer but I found no need if you get me

Andrei [34K]3 years ago

4 0

Answer:

Type A are cardiac muscles Type B are skeletal muscles, and Type C are smooth muscles.

Explanation:

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Which of the following statements best describes the function of the muscular system?

Korvikt [17]

Explanation:

A is excretion

B is digestion

so my guess is c

8 0

3 years ago

A mass 25kg is attached to a spring which is held stretched a distance 120 cm by a force F=300N (Fig. 7-28), and then released.

azamat

Explanation:

Spring is stretched by force f to distance

"X"

now here by force balance we can say

f = kx

k = !

now here we will we say that energy stored in the spring will convert into kinetic energy

kx² = mv²

(x² = mv²

now solving above equation we will have

PART 2)

now for half of the extension again we can use energy conservation

ka²-k(x/2)² = 1 {mv²

¾fx=mv²

now the speed is given as

3 fr 4m V=

4 0

3 years ago

a man can row about 4kmperhr in a still water.he rows the boat 2km up the stream and 2km back to his starting point in 2hr.how f

Nat2105 [25]

<u>Answer</u>:

The stream flowing at a speed of $2.828 \mathrm{km} / \mathrm{hr}$

<u>Explanation</u>:

Given:

Distance = 2km (both in upstream and downstream)

The speed in still water be x km/hr.

The speed in upstream = 4-x

Speed in downstream = 4+x

Solution:

We know that, Speed = distance/time

So, Time = distance/speed

Therefore,

$2=\left(\frac{2}{4-x}\right)+\left(\frac{2}{4+x}\right)$

$2=\frac{2(4+x)+2(4-x)}{(4-x)(4+x)}$

$2(4-x)(4+x)=2(4+x)+2(4-x)$

$2(4-x)(4+x)=2(4+x+4-x)$

By cancelling 2 on both sides,

$16-x^{2}=8$

$x^{2}=16-8=8$

$x=\sqrt{8}$

$x=2.828 \mathrm{km} / \mathrm{hr}$

Result:

Thus the speed of the stream is $2.828 \mathrm{km} / \mathrm{hr}$

7 0

4 years ago

The words can only be used onece. Use the words to complete the sentences below: Switch, break, on, complete, electricity, bulb,

lilavasa [31]

Answer:

A circuit which has a battery in it will not allow electricity to flow through it. A device called a switch can be used to complete a circuit so that other devices can be switched on or off.

Explanation:

^^^

8 0

2 years ago

What conditions are required for a cloud to form in the atmosphere?

DochEvi [55]

Water vapour and a drop in temperature to condense water vapour into a cloud. Something to see the cloud also, such as "pollution" particles.

6 0

3 years ago