Answer:
Catch the wave.
The shape and curves are designed to capture sound waves from various directions and funnel them into the ear to start vibrating those ossicles. Cupping your hand behind the ear and pulling it forward makes sounds louder because your hand is snagging more sound waves.
Explanation:
It will receive more sounds
Answer:
Because most of the human body (about 70% of it) consists of water
Explanation:
The main reason why the specific heat capacity of the human body is very close to that of water is that water makes approximately 70% of the substances of which the human body consists. However, the human body has a slightly smaller specific heat capacity than water, because it contains also other elements/substances, and since water is one of the substances with the higher specific heat capacity at all, the specific heat capacity of the body is a bit smaller.
A. An ionic bond is an attraction between oppositely charged ions. A covalent bond is a sharing of electrons between atoms.
B. A covalent bond is an attraction between oppositely charged ions. An ionic bond is a sharing of electrons between atoms.
C. There is no difference. Both an ionic bond and a covalent bond share electrons.
D. There is no difference. Both an ionic bond and a covalent bond are attractions between oppositely charged ions.
Question 3
What is a bond between a positive and a negative ion called?
A. covalent bond
B. ionic bond
C. metallic bond
D. polar bond
Question 4
Water (H2O) is composed of the same elements as hydrogen peroxide (H2O2). Why do these substances have different properties?
A.The atoms are arranged differently in each molecule.
B. The molecules are the same.
C. The atoms are the same.
D.Water has more atoms than hydrogen peroxide.
Question 5
What is the definition of a chemical bond?
A. a mutual attraction between the nuclei and electrons in two different atoms
B. a mutual attraction between the nuclei and electrons in a single atom
C. a mutual repulsion between the nuclei and electrons in two different atoms
D. a mutual repulsion between the nuclei and electrons in a single atom
Answer: 450 J
Explanation:
Kinetic Energy = 1/2 × mass × velocity²
Kinetic Energy = 1/2 × 1.0 Kg × 30 m/s²
Kinetic Energy = 1/2 × 1.0 Kg × 900
Kinetic Energy = 450 J