Longitudinal wave is a wave in which the motion of the medium's particles is parallel to the direction of the energy transport.
Note:
1 A (armstrong) = 10⁻¹⁰ m
1 nm (nanometer) = 10⁻⁹ m
Given:
Radius of a krypton atom = 1.9 A = 1.9 x 10⁻¹⁰ m
Part (a)
Answer: 0.019 nm
Part (b)
The diameter of a krypton atom = 2*1.9A = 3.8 A = 3.8 x 10⁻¹⁰ m.
The number of krypton atoms within a length of 1.0 mm is
Answer: About 2.632 x 10⁶ atoms
Part (c)
The radius of a krypton atom is
1.9 A = (1.9 x 10⁻¹⁰ m)*(10² cm/m) = 1.9 x 10⁻⁸ cm
The volume of a krypton atm is
Answer: 2.873 x 10⁻²³ cm³
Answer:
Answer: The dark patch formed due to obstruction of light rays by an opaque object is called a shadow. ... A shadow is formed when an opaque object is placed in the path of light.
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Explanation:
Answer:
Explanation:
Given
Speed v =27m/s
Distance covered after skidding = 41.5m
Acceleration a = ?
Using the equation of motion
v² =u²+2aS
27² = 0²+2a(41.5)
729 = 0+83a
a = 729/83
a = 8.78m/s²
Hence it's acceleration is 8.78m/s²