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Mekhanik [1.2K]
3 years ago
7

How do I solve the equation

Physics
1 answer:
ioda3 years ago
6 0
First you see the difference in mass numbers  238-234 = 4 
 Its is an alpha particle as it decreases the mass no by 4 .
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If you could travel 900 meters in 55 seconds, what is your speed?<br> (Answer in details=brainliest)
Alika [10]

Answer:

<em>The </em><em>rate </em><em>of </em><em>change </em><em>of </em><em>distance</em><em> </em><em>is </em><em>called </em><em><u>speed </u></em><em>it </em><em>can </em><em>also </em><em>be </em><em>defined</em><em> </em><em>as </em><em>distance</em><em> </em><em>travelled</em><em> </em><em>per </em><em>unit </em><em>time,</em><em>from </em><em>these </em><em>definition</em><em> </em><em>you </em><em>can </em><em>tell </em><em>that </em><em>the </em><em>formula</em><em> </em><em>will </em><em>be </em>

<em>speed=</em><em>distance</em><em>/</em><em>time</em>

<em>in </em><em>this </em><em>question</em><em> </em><em>the </em><em>distance</em><em> </em><em>is </em><em>9</em><em>0</em><em>0</em><em>m</em><em>e</em><em>t</em><em>e</em><em>r</em><em>s</em><em> </em><em>and </em><em>the </em><em>time </em><em>is </em><em>5</em><em>5</em><em>s</em><em>e</em><em>c</em><em>o</em><em>n</em><em>d</em><em>s</em><em> </em><em>therefore</em><em> </em><em>the </em><em>speed </em><em>will </em><em>be:</em>

<em>s=</em><em>9</em><em>0</em><em>0</em><em>m</em><em>e</em><em>t</em><em>e</em><em>r</em><em>s</em><em>/</em><em>5</em><em>5</em><em>s</em><em>e</em><em>c</em><em>o</em><em>n</em><em>d</em><em>s</em>

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<em>I </em><em>hope</em><em> this</em><em> helps</em>

7 0
3 years ago
1. Ja pendulum has a length of 0,500 m.What is the period of the pendulum? Use
dusya [7]

Answer:

formula: A mass m suspended by a wire of length L is a simple pendulum and undergoes simple harmonic motion for amplitudes less than about 15º. The period of a simple pendulum is T=2π√Lg T = 2 π L g , where L is the length of the string and g is the acceleration due to gravity.

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3 years ago
Help me. It's question 2 I need the answer for
Alex73 [517]
Ok, let me see if I can help

Sound is caused by vibrations. These can pass through a solid, liquid, and gas. But not through vacuum because there are no particles
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NemiM [27]

Answer:

79.1°

Explanation:

Given:

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First, in the x direction:

x = x₀ + v₀ t + ½ at²

19500 cos 32° = 0 + (1810 cos 20°) (9.20) + ½ ax (9.20)²

16537 = 15648 + 42.32 ax

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And in the y direction:

y = y₀ + v₀ t + ½ at²

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The direction of the acceleration is therefore:

θ = atan(ay / ax)

θ = atan(109.6 / 21.01)

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6 0
4 years ago
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aniked [119]

Hi there!

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3 0
2 years ago
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