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4 years ago

By pushing backwards a roller skater moves forward. This is an example of Newton's

Chemistry

1 answer:

joja [24]4 years ago

7 0

Answer:

newtons law of roller skated duh

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If the absolute temperature of a gas is 600 K, the temperature in degrees Celsius is A. 705°C. B. 327°C. C. 273°C. D. 873°C.

maksim [4K]

Answer:

Option B. 327°C

Explanation:

Absolute T° = T° in K

T° in K = T° in C + 273

T° in K - 273 = T° in C

600 K - 273 = 327°C

3 0

3 years ago

PLS HELP Sound travels faster through solids than it does through either liquids or gases. A student could verify this statement

iVinArrow [24]

Answer:

you are already right d

Explanation:

3 0

3 years ago

The specific heat of aluminum is 0.902 J/g C. If a one gram sample of aluminum absorbs 50 Joules of energy, how much with its te

PtichkaEL [24]

Answer:
55.4324℃
Explanation:
Q=cm△t
50J = 0.902J/（g·℃） x 1g x △t
△t =55.4324℃

7 0

3 years ago

Which part of an atom would be found orbiting the nucleus?

ollegr [7]

Answer:

electrons

Electrons are negatively charged particles that orbit the nucleus. The number of electrons depends on the element and it is an ion or not

3 0

3 years ago

(b) Ozone absorbs radiation of wavelengths 2200–2900 Å, thus protecting organisms from this radiation. Find the frequency and en

GrogVix [38]

The frequency and energy of most energetic of these photons is $1.36*10^{15}$ Hz and $9.04*10^{-19}$ J respectively.

The high energy photons will have least wavelength. Taking the given less wavelength for calculation of frequency and energy of photons.

λ = 2200 Å

Also, we know, 1 Å = $10^{-10}$ m

So, λ = $2200*10^{-10}$

λ = $2.2*10^{-7}$ <em> </em>m

Now, calculating frequency using the formula -

c = fλ, where c is speed of light, f is frequency and λ is wavelength.

We know, c = $3*10^{8}$ m/s

f = c/λ

f = $\frac{3*10^{8} }{2.2*10^{-7} }$

frequency = $1.36*10^{15}$ Hz

Now, calculating Energy through the formula -

E = hf, where E is energy, h is planck's constant and f is frequency

Value of planck's constant = $6.63*10^{-34}$ Js

E = $6.63*10^{-34}$ * $1.36*10^{15}$

Energy = $9.04*10^{-19}$ J

Thus, frequency and energy of photons is $1.36*10^{15}$ Hz and $9.04*10^{-19}$ J respectively.

Learn more about energy of photon -

brainly.com/question/15946945

#SPJ4

3 0

1 year ago