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
ss7ja [257]
4 years ago
10

Is hot asphalt that is poured into the ground and cools a physical or chemical change?

Physics
2 answers:
Gala2k [10]4 years ago
5 0
Physical change
Because it's changed by heat
BaLLatris [955]4 years ago
5 0
Physical. the asphalt itself is not changing. Only its state, from liquid to solid.
You might be interested in
ANSWER QUICK 30 POINTS
Lelu [443]
What do you need help on
4 0
3 years ago
In what direction does centripetal force act on an object that is traveling in a circular path?
Setler [38]

According to Newton's first law of motion, it is the natural tendency of all moving objects to continue in motion in the same direction that they are moving ... unless some form of unbalanced force acts upon the object to deviate its motion from its straight-line path.

Hope this helped, have a great day!
8 0
4 years ago
Can someone give me an objective and subjective statement example please
shusha [124]

Answer:

Objective: It is raining. Subjective: I love the rain!

Explanation:

Anything objective sticks to the facts, but anything subjective has feelings. Objective and subjective are opposites.

(Hope this helps can I pls have brainlist (crown)☺️)

7 0
3 years ago
The first ionization energy of a hydrogen atom is 2.18 aj (attojoules). what is the frequency and wavelength, in nanometers, of
jasenka [17]

1) Frequency: 3.29\cdot 10^{15}Hz

the energy of the photon absorbed must be equal to the ionization enegy of the atom, which is

E=2.18 aJ=2.18\cdot 10^{-18} J

The energy of a photon is given by

E=hf

where h=6.63\cdot 10^{-34}Js is the Planck's constant. By using the energy written above and by re-arranging thsi formula, we can calculate the frequency of the photon:

f=\frac{E}{h}=\frac{2.18\cdot 10^{-18} J}{6.63\cdot 10^{-34} Js}=3.29\cdot 10^{15} Hz


2) Wavelength: 91.2 nm

The wavelength of the photon can be found from its frequency, by using the following relationship:

\lambda=\frac{c}{f}

where c=3\cdot 10^8 m/s is the speed of light and f is the frequency. Substituting the frequency, we find

\lambda=\frac{3\cdot 10^8 m/s}{3.29\cdot 10^{15}Hz}=9.12\cdot 10^{-8} m=91.2 nm

5 0
3 years ago
True or False A scientific law only states that an event occurs?
Kamila [148]

True

A scientific law only states that an event occurs.

Hope this helps!

3 0
4 years ago
Other questions:
  • On the Moon, the acceleration due to the effect of gravity is only about 1/6 of that on Earth. An astronaut whose weight on Eart
    15·2 answers
  •  While texting his girlfriend that he was running late for their date, Jordan rear-ended a car stopped at a red light. Since thi
    6·2 answers
  • A man walks 18m East then 9.5 North. What is the direction of his displacement?​
    10·1 answer
  • Sebuah benda dijatuhkan bebas dari ketinggian 200 m jika grafitasi setempat 10 m/s maka hitunglah kecepatan dan ketinggian benda
    7·1 answer
  • List an example of each of the four classes polymers that living things make and use
    5·1 answer
  • A block of mass m = 4.4 kg slides from left to right across a frictionless surface with a speed 9.2 m/s It collides in a perfect
    13·1 answer
  • Help?step by step/no need
    11·1 answer
  • Question 5 of 20 Engineers are using computer models to study train collisions to design safer train cars. They start by modelin
    8·2 answers
  • Will give big prizes !!
    9·1 answer
  • what is the magnitude of the gravitational force acting on the earth due to the sun? express your answer in newtons.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!