1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Darya [45]
3 years ago
12

At 7.0°c, the volume of a gas is 49 ml. at the same pressure, its volume is 74 ml at what temperature?

Physics
1 answer:
Rashid [163]3 years ago
8 0
So i converted everything first; 
<span>7.0 C ---> 280 K </span>
<span>49 mL---> 0.049 L </span>
<span>74mL---> 0.074 L </span>
<span>THEN I tried setting it up by the combined law formula which is P1V1/T1=P2V2/T2 </span>
You might be interested in
What would be an example of a landform from magma
igomit [66]
I would say Lava.
Hope this helps. :)
7 0
3 years ago
Read 2 more answers
The object has a redshift of 7.6 and the JWST observes the object at a wavelength of 2 microme-
olasank [31]

b. The wavelength of light emitted by the object is 233 nm

c. The type of radiation originally emitted by the object is ultraviolet radiation.

To find the wavelength, we need to know what redshift is.

<h3>What is redshift?</h3>

Redshift is the increase in wavelength and the corresponding decrease of frequency and photon energy of electromagnetic radiation.

Redshift is given by z = λ'/λ - 1 where

  • λ' = observed wavelength and
  • λ = emitted wavelength.

Making λ subject of the formula, we have

λ = λ'/(1 + z)

Given that has a redshift of 7.6 and the JWST observes the object at a wavelength of 2 micrometres (mid-infrared light).

So,

  • z = 7.6 and
  • λ' = 2μm

<h3>(b) What is the wavelength of the light emitted by the object?</h3>

Substituting the values of the variables into the equation, we have

λ = λ'/(1 + z)

λ = 2μm/(1 + 7.6)

λ = 2μm/8.6

λ = 0.233 μm

λ = 233 nm

So, the wavelength of light emitted by the object is 233 nm

<h3>c. What type of radiation was originally emitted by the object?</h3>

Since the wavelength is 233 nm and the wavelength is in the range of ultraviolet radiation 200 nm - 315 nm.

So, the type of radiation originally emitted by the object is ultraviolet radiation.

Learn more about redshift here:

brainly.com/question/27915180

#SPJ1

8 0
2 years ago
Secretariat is known as the horse with the fastest run in the Kentucky Derby. If Secretariat's record 1.25 mi run lasted 1 minut
zmey [24]

Answer:

v = 16.87 m/s

Explanation:

Given that,

Distance, d = 1.25 miles

d = 2011.68 m

Time, t = 1 minute 59.2 seconds

= 60 s + 59.2 s

= 119.2  s

We need to find the average speed of the horse. It is given by total distance covered divided by total time.

v=\dfrac{2011.68 \ m}{119.2\ s}\\\\=16.87\ m/s

So, his average speed is 16.87 m/s.

8 0
3 years ago
How does energy transform from one form to another?
Sliva [168]
Energy can only be converted from one form to another

eg kinetic energy is converted to heat energy
4 0
3 years ago
Read 2 more answers
The mass of a hot air ballon including its cargo is 320 kg. the hot air inside it has a density of 1.19 kg/m^3. the density of t
ASHA 777 [7]

Answer:

40454.4 N

Explanation:

mass, m = 320 kg

density of hot air, d = 1.19 kg/m^3

density of cold air, d' = 1.29 kg/m^3

Volume of the balloon, V = mass / density

V = 320 / (1.29 - 1.19)

V = 3200 m^3

So, buoyant force

F = Volume x density outside x gravity

F = 3200 x 1.29 x 9.8

F = 40454.4 N

thus, the buoyant force is 40454.4 N.

3 0
4 years ago
Other questions:
  • A cheetah can run at 30 m/s, but only for about 12s. How far will it run in that time
    12·1 answer
  • What is the resulting value for the Hubble constant?Write your answer in scientific notation
    10·1 answer
  • Is it possible for a nitrogen atom to change into an oxygen atom? If so, how?
    6·1 answer
  • What would happen if our bodies could not metabolize glucose?
    5·2 answers
  • Have you ever wondered how a vending machine "knows" that you have put in the correct amount of change to purchase a snack or a
    8·1 answer
  • Compound axial member ABC has a uniform diameter of d = 1.50 in. Segment (1) is an aluminum [E1 = 10,000 ksi] alloy rod with a l
    7·1 answer
  • A kettle heats 1.75 kg of water. The specific latent heat of vaporisation of water is 3.34 x 106 J/kg. How much energy would be
    7·1 answer
  • I WILL MARK YOU AS BRAINLIEST IF RIGHT
    10·1 answer
  • Automobile air bags use the decomposition of sodium azide as their sources of gas for rapid inflation, represented in the reacti
    14·1 answer
  • The image of an object formed by plane mirror is​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!