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3 years ago

"Which missing item would complete this alpha decay reaction? "

Physics

2 answers:

Helga [31]3 years ago

7 0

Find the attachment below.

nalin [4]3 years ago

7 0

This is alpha decay not beta decay.

<span>Fermium 257 decays by ALPHA decay into 253 Cf which has an atomic number of 98 </span>

<span>So your reaction is </span>

<span>257Fm --> 253Cf...+ 4He </span>
<span>100................98.........2 </span>

<span>Interestingly Californium does undergo beta decay. </span>

<span>253Cf ---> 253Es + e- </span>
<span>98...............99 </span>

<span>Hope this helps.</span>

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Inappeopiate pratices: what it means? Why it not good idea to use these?

Rina8888 [55]

Answer:

Inappropriate practice is conduct by a practitioner in connection with rendering or initiating services that a practitioner's peers could reasonably conclude was unacceptable to the general body of their profession.

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3 years ago

a net force of 219 N is exterted on a rock. the rock has an acceleration of 3m/s^2 due to this force. what is the mass of the ro

Sonbull [250]

Answer:

Explanation:

The mass of the object can be found by using the formula

$m = \frac{f}{a} \\$

f is the force

a is the acceleration

From the question we have

$m = \frac{219}{3} \\$

We have the final answer as

Hope this helps you

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2 years ago

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Andre45 [30]

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2 years ago

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amid [387]

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Hope this helps!
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2 years ago

Toy car in a science experiment covers 1.6 meters in half a second. If a the car travels at a steady speed, how far will it go i

Tanzania [10]

The answer is D. 32 m.

The simple equation that connects speed (v), time (t), and distance (d) can be expressed as:
$v= \frac{d}{t}$ ⇒ $d=v*t$

It is given:
$v = \frac{1.6m}{0.5s} = \frac{1.6m*2}{0.5s*2}= \frac{3.2m}{1s} = 3.2 m/s$
t = 10 s
d = ?

So:
$d= v*t=3.2m/s*10s = 32m$

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2 years ago