Ask question

Ask question

All categories

3 years ago

14

normally a slower moving person would develop less power then a faster moving person. describe a situation in which a slower mov

ing person can develop more power then a fast moving person.

1 answer:

belka [17]3 years ago

4 0

Answer:

muscle

Explanation:

weight can also be added by muscle. not necessarily fat. so if you have a lot of muscle so that adds weight you can be very powerful but can mover very slow.

You might be interested in

Guiana dolphins are one of the few mammals able to detect electric fields. In a test of sensitivity, a dolphin was exposed to th

iren [92.7K]

Answer:

0.05 V/m

Explanation:

V = Potential difference that is possible for the dolphin to detect = 0.5 mV

d = Distance between electrodes = 1 cm

Electric field strength is given by

$E=\dfrac{V}{d}$

$\Rightarrow E=\dfrac{0.5\times 10^{-3}}{1\times 10^{-2}}$

$\Rightarrow E=0.05\ V/m$

The corresponding electric field strength is 0.05 V/m

8 0

3 years ago

If energy cannot go away, why don’t things move forever?)

HACTEHA [7]

Answer:

because energy is used to keep the things in place

5 0

3 years ago

Give two example of conditions when two objects (Object A=1 kg and Object B =10 kg) would have the same momentum.

bearhunter [10]

Answer:

they can have the momentum if only they are been divided by another number to see the difference

6 0

2 years ago

Rodney is trying out one of Santa's new games that consists of three pieces that blow apart if the wrong key is inserted into th

ch4aika [34]

Answer:

<em>The third piece moves at 6.36 m/s at an angle of 65° below the horizon</em>

Explanation:

Linear Momentum

It's a physical magnitude that measures the product of the velocity by the mass of a moving object. In a system where no external forces are acting, the total momentum remains unchanged regardless of the interactions between the objects in the system.

If the velocity of an object of mass m is $\vec v$ , the linear momentum is computed by

$\displaystyle \vec{P}=m.\vec{v}$

a)

The momentum of the board before the explosion is

$\displaystyle \vec{P}_{t1}=m_t\ \vec{v}_o$

Since the board was initially at rest

$\displaystyle \vec{P}_{t1}=$

After the explosion, 3 pieces are propelled in different directions and velocities, and the total momentum is

$\displaystyle \vec{P}_{t2}=m_1\ \vec{v}_1\ +\ m_2\ \vec{v}_2+m_3\ \vec{v}_3$

The first piece of 2 kg moves at 10 m/s in a 60° direction

$\displaystyle \vec{v}_1=(10\ m/s,60^o)$

We find the components of that velocity

$\displaystyle \vec{v}_1=$

$\displaystyle \vec{v}_1=m/s$

The second piece of 1.2 kg goes at 15 m/s in a 180° direction

$\displaystyle \vec{v}_2=(15,180^o)$

Its components are computed

$\displaystyle \vec{v}_2=(15\ cos180^o,15\ sin180^o)$

$\displaystyle \vec{v}_2=(-15,0)\ m/s$

The total momentum becomes

$\displaystyle P_{t2}=2+1.2+m_3\ \vec{v}_3$

Operating

$\displaystyle P_{t2}=++m_3\ \vec{v}_3$

Knowing the total momentum equals the initial momentum

$\displaystyle P_{t2}=+m_3\ \vec{v}_3=0$

Rearranging

$\displaystyle m_3\ \vec{v}_3=$

Calculating

$\displaystyle m_3\ \vec{v}_3=$

This is the momentum of the third piece

b)

From the above equation, we solve for $\vec v_3$ :

$\displaystyle \vec{v}_3=\frac{1}{3}$

$\displaystyle \vec{v}_3=m/s$

The magnitude of the velocity is

$\displaystyle \vec{v}_3|=\sqrt{2.67^2+(-5.77)^2}=6.36$

And the angle is

$\displaystyle tan\theta =\frac{-5.77}{2.67}=-2.161$

$\displaystyle \theta =-65.17^o$

The third piece moves at 6.36 m/s at an angle of 65° below the horizon

5 0

3 years ago

The discovery of ribozymes provide evidence that life on the early earth may have been based on:_________

REY [17]

The discovery of ribozymes provide evidence that life on the early earth may have been based on RNA world hypothesis.

<h3>Origins of Life and the RNA World</h3>

We must think about how these mechanisms developed during evolution in order to completely comprehend the processes taking place in modern living cells.

The production of genetic information, which today requires incredibly complicated machinery and travels from DNA to protein via an intermediary called RNA, is the most fundamental of all such issues.

<h3>How did this equipment come to be? </h3>

One theory holds that there was an RNA world on Earth before contemporary cells emerged. This is the hypothesis.

RNA was a genetic information repository and a catalyst for chemical reactions in the earliest cells.

Proteins took over as the main catalytic and structural component of cells considerably earlier in the evolutionary process than DNA, which didn’t become the major genetic component until much later. If this hypothesis is correct, the departure from the RNA world was never truly complete.

To know more about RNA World visit:

brainly.com/question/25979866

#SPJ4

8 0

1 year ago