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3 years ago

why should it take significantly more energy to move a beam of alpha particles than a beam of beta minus particles

1 answer:

8 0

An 'alpha particle' is the same thing as the nucleus of a helium atom ...
a little bundle made of 2 protons and 2 neutrons.

A 'beta' particle is an electron.

The mass of an alpha particle is more than <em>7,000 times</em> the mass of
an electron, so it certainly takes more energy to get it moving.

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You're driving your new sports car at 80 mph over the top of a hill that has a radius of curvature of 540 m. What fraction of yo

luda_lava [24]

Answer:

75.84%

Explanation:

We were given Speed of the sports car, v as 80 mph , we can convert to m/s for unit consistency.

v=80mph= 35.76 m/s

The radius of curvature is given as , r = 540 m

✓ the normal weight can be denoted as Wn

✓ the apparent weight of the person can be denoted as Wa

Wn= normal weight= mg

Wa=apparent weight = (mg - mv^2/r)

g= acceleration due to gravity= 9.8m/s^2

The apparent weightand normal weight has a ratio of

Mn/Ma= [mg - mv^2/r]/mg ........eqn(1)

If we simplify eqn(1) we have

Mn/Ma=[g - vr^2/g].............eqn(2)

Then substitute the given values

Mn/Ma=9.8 - [(35.76^2)/540]/ 9.8

=0.758×100%

Mn/Ma=75.84%

Hence, the required fraction is 75.84%

4 0

2 years ago

"Pluto Is Changing" talks about sheets of frozen nitrogen on Pluto. Tell what is happening to these sheets of ice

drek231 [11]

What is Pluto is changing exactly <span />

7 0

3 years ago

How much charge does a 9.0 v battery transfer from the negative to the positive terminal while doing 45 j of work?

bija089 [108]

Here is your answer

$5 coulomb$

REASON :

We know that

Potential difference, V= W/q

where, W is work done

and, q is magnitude of charge

Given,

V= 9.0 v and W= 45 J

So,

using above relation, we get

9= 45/q

q= 45/9

q= 5 coulomb

HOPE IT IS USEFUL

6 0

2 years ago

What is an object's change in position, or displacement, and the change in time over which that displacement occurred used to ca

nikklg [1K]

The average velocity as velocity is equal to displacement/time

7 0

2 years ago

Can someone help me?in the phy

blagie [28]

Answer:

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5 0

3 years ago