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2 years ago

How many times bigger is the radius of a helium atom then the radius of an alpha particle

Physics

1 answer:

kiruha [24]2 years ago

4 0

The radius of a helium atom 4.8 times bigger then the radius of an alpha particle.

<h3>What is alpha particle?</h3>

The structure of alpha particles, also known as alpha rays and alpha radiation, is similar to that of the helium-4 nucleus and has been made up of two protons as well as two neutrons bonded together.

<h3>What is helium?</h3>

For welding metals like aluminum, helium was utilized as an inert gas environment. It is also employed in rocket propulsion.

The radius of a helium atom 4.8 times bigger then the radius of an alpha particle. More precisely than it's ever been, the diameter of the helium atom's nucleus, the alpha particle, had also been measured. Outcomes just point to a size of 1.6782 femtometers, 4.8 times more accurate than earlier readings.

To know more about helium and alpha particle.

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A car is traveling at 40 m/s for 20 seconds. How far did it travel in this time?

barxatty [35]

<h3>Answer:</h3>

800 meters

<h3>Explanation;</h3>

<u>We are given;</u>

Speed as 40 m/s
Time as 20 seconds

We are required to determine the distance traveled

Speed refers to the rate of change in distance.
It is given by;

Speed = Distance ÷ time

Rearranging the formula;

Distance = speed × time

In this case;

Distance = 40 m/s × 20 sec

= 800 meters

Thus, the distance traveled by the car is 800 m

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3 years ago

What is the magnitude of the force a 25 charge exerts on a 3 mc charge 35cm away?

lara31 [8.8K]

The electrostatic force between two charges is given by
$F=k_e \frac{q_1 q_2}{r^2}$
where
ke is the Coulomb's constant
q1 and q2 are the two charges
r is the separation between the charges

In our problem,
$q_1 = 25 \mu C=25 \cdot 10^{-6} C$
$q_2 = 3 mC = 3 \cdot 10^{-3} C$
$r=35 cm=0.35 m$
Therefore the electrostatic force is
$F=(8.99 \cdot 10^9 Nm^2C^{-2}) \frac{(25 \cdot 10^{-6}C)(3 \cdot 10^{-3}C)}{(0.35 m)^2}= 5510 N$

4 0

4 years ago

What metric units are used to report the mass of an object

sladkih [1.3K]

The unit used<span> to measure weight in the metric system is the gram.</span>

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4 years ago

Where is cloud data stored?

Annette [7]

Answer: i think its local drive

Explanation:

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3 years ago

Read 2 more answers

2. If you were trying to determine if cars in your neighborhood were travelling at or below the posted speed limit, how would yo

Varvara68 [4.7K]

Speed is defined as the distance over time. So in measuring the speed of a car, the most manual thing that we can do besides using a speedometer is to measure a certain distance then measure the time at which the car passes that distance then divide the distance over the time. Then determine the speed limit.

4 0

4 years ago