Answer:
the awnser is D
Explanation:
nuclear and chemical
radiant and thermal
elastic and gravitational
elastic and gravitational, D
Answer:
atoms remain bonded to each other in physical changes.
Explanation:
Answer:
c
Explanation:
Answer: sac
Tunicates are sea squirts that are found in the marine water. These animals remains attached to the rocks and the sea beds. They exhibit a body shape which looks like a barrel. The barrel has two openings called as siphons. These siphon helps in the intake of the food particles and oxygen. These animals look like sac on the sea floor.
Answer:
each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei, and hence differ in relative atomic mass but not in chemical properties; in particular, a radioactive form of an element.
"some elements have only one stable isotope"
Explanation:
there ya go! Pls give me brainliest!
Answer:
The John 's speed is 20 m/s.
The Betty's speed is 20 m/s
Explanation:
Given that,
John is traveling north at 20 meters/second and his friend Betty is traveling south at 20 meters/second.
We need to calculate the John and Betty's speeds
We know that,
The speed is a scalar quantity. its has only magnitude.
Hence, The John 's speed is 20 m/s.
The Betty's speed is 20 m/s