Answer:
C. The moon orbits and rotates the same, so we NEVER see the far side of the moon from earth
Explanation:
lateral continuity
B.
horizontal continuity
C.
faunal succession
D.
geological succession
200° Celsius
300° Celsius
400° Celsius
Boiling point is at 200° Celsius
Explanation:
Matter exists in three states:
- Solid state: the molecules of the element are fixed in their place and strongly bonded to each other - therefore, they can only vibrate around their fixed position.
- Liquid state: the molecules of the element are free to slide past each other - however, there are still intermolecular forces that keep them close to each other
Gas state: the molecules of the element are completely free to move far from each other
Evaporation is the process that occurs when a substance changes from liquid to gas state. This process occurs when the temperature of the substance reaches its boiling point.
In the graph given in this problem (find it in attachment), we observe that:
- At first, the temperature increases up to 50 Celsius; this is the solid state
- Then the temperature stops increasing --> this is the transition of phase from solid to liquid (melting), which occurs at a constant temperature of 50 Celsius (melting point)
- Then, the temperature increases again up to 200 Celsius (liquid state)
- Then the temperature stops increasing again --> this is the transition of phase from liquid to gas (evaporation), which occurs at a constant temperature of 200 Celsius, which is therefore the boiling point
- Then, the temperature increases again (gas state)
Therefore, the boiling point of the substance in this problem is
200° Celsius
Learn more about temperature:
#LearnwithBrainly
Answer:
B
Explanation:
200 degrees Celcius.
to allow for consistency with measurement data
B.
in order to use tools marked in customary units
C.
so they can keep measurement data confidential
D.
to record measurements with easier abbreviations
The number of protons always equals the number of neutrons in all isotopes.
B.
The number of protons never equals the number of neutrons in an isotope.
C.
Different isotopes for the same element will always have the same numbers of neutrons.
D.
Different isotopes for the same element always have the same number of protons.
Answer:
D. different isotopes for the same element will always have the same numbers of neutrons.
Explanation:
An isotope is the different variant of an element that has different number of neutron. There are various elements found in nature that have different isotopes.
Number of neutrons present in atom is different for the same element which makes the mass of one isotope different from the another.
Example of such isotope : Isotope of hydrogen are Protium, Deuterium and Tritium.
Different isotopes for the same element will always have the same numbers of neutrons.
The correct statement about isotopes is C. Different isotopes for the same element will always have the same numbers of neutrons. Isotopes are variants of an element that have the same number of protons but different numbers of neutrons. The number of protons in an element determines its atomic number, whereas the sum of protons and neutrons determines its atomic mass. So, while isotopes of the same element have the same number of protons, they can have different numbers of neutrons.
#SPJ6
MATCH THESE ^-^ Match Newton's law with the correct statement.
2. 1st law of motion (law of inertia)
3. 2nd law of motion
4. 3rd law of motion
-------------------------------------------------------------------------------------------------------
A. "My coffee spilled all over because you slammed on your brakes!"
B."The box of cotton is much easier to lift than the box of books."
C. "That bat hurt my hands when I hit the ball!"
D. "I can't hit the ball farther than you because you're stronger than I am."
Answer:
1. law of universal gravitation -"The box of cotton is much easier to lift than the box of books."
2. 1st law of motion (law of inertia) - "My coffee spilled all over because you slammed on your brakes!"
3. 2nd law of motion - "I can't hit the ball farther than you because you're stronger than I am."
4. 3rd law of motion - "That bat hurt my hands when I hit the ball!"
Explanation:
Law of gravitation states that there exists an attractive force between two objects having mass. The magnitude of the force depends upon the masses of the two objects and inversely proportional to the distance between them. Thus, greater the mass, greater would be the force. weight of an object is determines the gravitation pull of the Earth on the mass of the object. Thus, it is easier to lift a box of cotton which is lighter in weight than a box of books.
Newton's first law states that an object remains in state of rest or motion unless exerted by an unbalanced external force. Thus, when you are sitting in the car and the driver applies break suddenly, you experience a pull force because you continue to move forward while the car suddenly decelerates and if you would be holding coffee, it can spill.
Second law of motion states that force is rate of change of momentum. Momentum depends on the mass and velocity of the object. Greater the mass, greater would be momentum. Thus, A person who is stronger would be able to hit the ball harder and hence faster than the other.
Third law of motion states that, for every action, there is equal and opposite reaction. Thus, when when you a ball with the bat, you are applying force with your hands. Hence, your hands would also experience an equal amount of force in the opposite direction and you would get hurt.