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3 years ago

How much would a 25 kg suitcase weigh on the surface of…?

Physics

1 answer:

viktelen [127]3 years ago

8 0

Answer:

a) $W_{Mercury}=92.5 N$

b) $W_{Mars}=92.8 N$

c) $W_{Saturn}=261.0 N$

d) $W_{Pluto}=15.5 N$

Explanation:

First of all, we need to remember the value of gravity acceleration on each planet.

$g_{Mer}=3.70 m/s^{2}$

$g_{Mar}=3.71 m/s^{2}$

$g_{Sat}=10.44 m/s^{2}$

$g_{Plt}=0.62 m/s^{2}$

The definition of weigh is the product between the mass and the gravity acceleration, therefore we will have:

a) $W_{Mercury}=25*3.70=92.5 N$

b) $W_{Mars}=25*3.71=92.8 N$

c) $W_{Saturn}=25*10.44=261.0 N$

d) $W_{Pluto}=25*0.62=15.5 N$

I hope it helps you!

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Which element has atoms with valence electrons in a higher energy level than those of calcium (Ca)?

enyata [817]

Here, we are required to determine which element has atoms with Valence electrons in a higher energy level than those of calcium.

The Valence electrons of the Caesium, Cs atoms has higher energy level than those of Calcium.

First, we need to determine the electronic configuration of each of the elements

Therefore the Calcium electron configuration will be:
1s²2s²2p⁶3s²3p⁶4s²

Therefore, for Cs Electron Configuration:
1s² 2s²2p⁶3s²3p⁶3d¹⁰ 4s²4p⁶4d¹⁰ 5s²5p⁶ 6s¹
Therefore, For lithium, The electron configuration of lithium is :
1s²2s¹

For oxygen, Therefore the O electron configuration will be:
1s²2s²2p⁴

For bromine, the electronic configuration is 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁵

Among the elements in the option, the Valence electrons of the Caesium, Cs atoms has higher energy level than those of Calcium.

This is so because the only Valence electron of Cs is located in the 6s orbital and as such has the highest energy level amongst all of the elements.

Read more:

brainly.com/question/17678749

7 0

3 years ago

By what factor does the sound intensity increase if the sound intensity level increases from 60 db to 61 db?

tiny-mole [99]

Answer:

$\frac{I_{2}}{I_{1}} = 10^{0.1}$

Explanation:

The sound intensity level β can be mathematically defined as

$\beta(dB) = 10log_{10}(\frac{I}{I_{o} } )$

where $I_{o}$ is the reference intensity and is equal to $10^{-12}$ $W/m^{2}$ .

Now,

$\beta_{2} - \beta_{1} = 10 log\frac{I_{2} }{I_{o}} - 10 log\frac{I_{1} }{I_{o}}\\62-60= 10log(\frac{\frac{I_{2} }{I_{o} } }{\frac{I_{1} }{I_{o} } } )\\1=10log(\frac{I_{2} }{I_{1} } )\\\\\frac{I_{2} }{I_{1} }=10^{0.1}$

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4 years ago

A baseball has a mass of 0.145 kg. A professional pitcher throws a baseball 67 mi/h, which is 30.0 m/s. What is the magnitude of

Kamila [148]

The concept of momentum tells us that it is equivalent to the product between the mass and the velocity of the object, that is to say that in general it can be written as

$p = mv$