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Anni [7]
3 years ago
13

What metric unit would you use to measure the weight of an elephant​

Physics
1 answer:
Tems11 [23]3 years ago
5 0

Answer:

kilograms

Explanation:

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Two children are riding on a merry-go-round that is rotating with a constant angular speed. Abbie is one meter from the center o
klio [65]

Answer:

The acceleration of Abbie is half of the Zak's.

Explanation:

The centripetal acceleration of an object on a circular path is given by :

a=r\omega^2

Two children are riding on a merry-go-round that is rotating with a constant angular speed. Let r_1 is distance of Abbie from the merry-go-round and r_2 is distance of Zak's from the merry-go-round. Acceleration of Abbie is :

a_1=r_1\omega^2 ...... (1)

r_1=1\ m

Acceleration of Zak's is :

a_2=r_2\omega^2 .......(2)

r_2=2\ m

Dividing equation (1) and (2) we get :

\dfrac{a_1}{a_2}=\dfrac{r_1}{r_2}\\\\\dfrac{a_1}{a_2}=\dfrac{1}{2}\\\\a_1=\dfrac{a_2}{2}

So, the acceleration of Abbie is half of the Zak's.

7 0
3 years ago
How do i solve the ones in red? A student fires a cannonball horizontally with a speed of 24.0m/s from a height of 51.0m. Neglec
Rus_ich [418]

Horizontal speed = 24.0 m/s

height of the cliff = 51.0 m

For the initial vertical speed will are considering the vertical component. Therefore,

Since the student fires the canonical ball at the maximum height of 51 m, the initial vertical velocity will be zero. This means

\text{ Initial vertical velocity = 0 m/s}

let's find how long the ball remained in the air.

\begin{gathered} 0=51-\frac{1}{2}(9.8)t^2 \\ 4.9t^2=51 \\ t^2=\frac{51}{4.9} \\ t^2=10.4081632653 \\ t=\sqrt[]{10.4081632653} \\ t=3.22 \\ t=3.22\text{ s} \end{gathered}

Finally, let's find the how far from the base of the building the ball landed(horizontal distance)

\begin{gathered} S_x=u_xt+\frac{1}{2}a_xt^2 \\ S_x=24\times3.23 \\ S_x=\text{horizontal distance=77.28 m} \\ \text{note} \\ a_x=0m/s^2 \end{gathered}

6 0
1 year ago
How is thermal energy transferred between two objects that are at different temperatures?
OLga [1]

Answer:

when you bring two objects of different temperatures together, energy will always be transferred from the hotter to the cooler object. The objects will exchange thermal energy, until thermal equilibrium is reached, until their temperatures are equal. We say that heat flows from the hotter to the cooler object.

6 0
3 years ago
Sigmund Freud based much of his theory on intensive analyses of individual patients. The psychoanalytic perspective, therefore,
Eduardwww [97]

The psychoanalytic perspective is built on foundation of case studies as Sigmund Freud has base his theory with analysis of patients of which we could point out that it has built with the foundation of case studies. It is because case studies are the researches or study that is being reviewed and are being analyzed in order to determine the causes of the problem and the solutions of it.

5 0
2 years ago
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In what ways are sound waves and electromagnetic waves different?
Veseljchak [2.6K]
Choice-A is a false statement, and the other three choices are absurdly untrue and physically impossible. None of the choices is an applicable response to the question.
8 0
3 years ago
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