3 years ago

What is meant by physical balance?

Physics

1 answer:

serious [3.7K]3 years ago

8 0

Answer:

it is a balance in measuring weights in milligram

Explanation:

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A 65.0 kg ice skater standing on frictionless ice throws a 0.15 kg snowball horizontally at a speed of 32.0 m/s. What is the vel

spin [16.1K]

Answer:

(d) 0.07 m/s

Explanation:

Given Data

Snowball mass m₁=0.15 kg

Ice skater mass m₂=65.0 kg

Snowball velocity v₁=32.0 m/s

To find

Velocity of Skater v₂=?

Solution

From law of conservation of momentum

$m_{1}v_{1}=m_{2}v_{2}\\ v_{2}=\frac{m_{1}v_{1}}{m_{2}}\\ v_{2}=\frac{(0.15kg)(32.0m/s)}{65.0kg}\\ v_{2}=0.0738m/s\\or\\v_{2}=0.07 m/s$

So Option d is correct one

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3 years ago

Chemical equations should be balanced so that they demonstrate the law of conservation of mass. Which of the following statement

faust18 [17]

Answer:

The products must contain the same numbers and types of atoms

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2 years ago

If the time for F18 to take off doubles, the acceleration will ____.

kherson [118]

Answer:

decreases

Explanation:

a=[v-u]/t

as time increases acceleration decreases and vice versa

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2 years ago

What type of motion is shown with this graph? (5 points)

Vladimir [108]

It should be Constant speed. The line goes straight & doesn’t change within the graph.

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2 years ago

how does the number of chromosomes in a persons sex compare with the number of chromosome in the body cell

koban [17]

no it doesn't why because I think that it is not the same but different.

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2 years ago

What is meant by physical balance? ​

What is meant by physical balance?