<span>when the temperature is warm, the particles move faster and the gas is expanding and pushing on the walls of the item, like for example, a NYPD float balloon. If the gas expands too much, the balloon will explode</span>

8 0

3 years ago

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Can you click the picture

Mariana [72]

Answer:

Explanation:

6 0

3 years ago

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Why does a physical change occur when iodine is heated?

makkiz [27]

Answer:

Explanation:

when few crystals of iodine are added to test tube

the test tube gets heated and turns into a gas

which later soldifies to a liquid

I hope this helps

8 0

3 years ago

An ionized helium atom has a mass of 6.6 × 10-27 kg and a speed of 5.3 × 105 m/s. It moves perpendicular to a 0.78-T magnetic fi

arsen [322]

Explanation:

In a magnetic field, the radius of the charged particle is as follows.

r = $\frac{mv}{qB}$

where, m = mass, v = velocity

q = charge, B = magnetic field

Therefore, q will be calculated as follows.

q = $\frac{mv}{rB}$

= $\frac{6.6 \times 10^{-27} \times 5.3 \times 10^{5}}{0.014 m \times 0.78 T}$

= $\frac{34.98 \times 10^{-22}}{0.01092}$

= $3.2 \times 10^{-19} \times \frac{1.0 e}{1.6 \times 10^{-19}C}$

= +2e

Thus, we can conclude that the charge of the ionized atom is +2e.

5 0

3 years ago