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3 years ago

True or false The forehand and backhand strokes are commonly used for serving in Table Tennis.

Physics

1 answer:

andre [41]3 years ago

6 0

Answer: true

Explanation:

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Isss in the pic pls help

defon

Answer:

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reacts with nonmetal: base

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can cause burns: both

conduct electricity: both

taste bitter: base

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3 years ago

Why is a pond appears shallower than it actually is?

larisa86 [58]

Answer:

Below:

Explanation:

Consider two rays originating from the bottom of the pond. As these rays get refracted into the air, they bend away from the normal. ... This point gives the apparent position of the bottom of the pond, therefore, the pond appears to be shallower.

Hope it helps....

It's Ms-Muska

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3 years ago

¿Que es un átomo???????

disa [49]

Un átomo es una porción material menor de un elemento químico que interviene en las reacciones químicas y posee las propiedades características de dicho elemento.

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3 years ago

A merry-go-round is rotating at an angular speed of 0.2 radians/s. Its motor falls off and it rotates freely. A technician jumps

I am Lyosha [343]

Answer:

I₁ =1250 kg.m²

Explanation:

Given that

Angular speed of Merry ,ω₁= 0.2 rad/s

Angular speed of technician ,ω₂= 0.04 rad/s

Moment of the inertia of the technician ,I₂= 5000 kg.m²

Lets assume that

Moment of the inertia of merry with respected to the ground=I₁

There is no any external torque ,that is why angular momentum of the system will be conserve.

Now by conserving angular momentum

I₁ ω₁=(I₁+I₂)ω₂

I₁ x 0.2 = (I₁ +5000 ) x 0.04

I₁ (0.2-0.04) = 5000 x 0.04

$I_1=\dfrac{5000\times 0.04}{0.2-0.04}$

I₁ =1250 kg.m²

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3 years ago

Which does a reference point provide

mr_godi [17]

Point of reference - an indicator that orients you generally; "it is used as a reference for comparing the heating and the electrical energy involved"

5 0

3 years ago