Answer:
FRORE=MASS OF OBJECT x ACCELERATION
Explanation:
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Answer:
in 6.0 E3 g of blood at a concentration of 0.62 ppm there are 3.5g of lead content
Explanation:
- blood density: 1.06 g/L
- ppm ≡ mg Pb / L blood
⇒ V blood = 6.0E3gblood * L / 1.06gblood = 5660.37 L blood
<u> mass of lead:</u>
⇒ 5660.37 L blood * 0.62 mg Pb / L blood * 0.001 g / mg
⇒ mass = 3.509 g of lead
Explanation:
It is known that relation between wavelength and frequency is as follows.
where, 
= wavelength
c = speed of light = 
[/tex]\nu[/tex] = frequency
It is given that frequency is 
. Hence, putting this value into the above formula and calculate the wavelength as follows.
= 
or, = 
Thus, we can conclude that wavelength of given radiation is .
The half-life of Plutonium−239, t1/2 is 2.41 × 10⁴<span> yrs
time taken to reach tolerable level = seven half-lives
= 7 x t1/2
= 7 x </span>2.41 × 10⁴ yrs
= 168700 yrs
= 1.687 x 10⁵ yrs
Hence, the period of time that <span>Plutonium-239 must be stored is </span>1.687 x 10⁵ years.
Answer:
kinetic energy is the energy of movement
Explanation:
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