The answer is D.
Velocity is the speed in a particular direction.
Saying that you are going from Los Angeles to Catalina Island is not a particular direction, it is an end destination.
Answer:
16.96 W
Explanation:
Power: This can be defined as the rate at which work is done by an object. The S.I unit of power is Watt(W).
From the question,
P = (F×d)/t....................... Equation 1
Where P = power, F = force, d = distance, t = time.
Given: F = 75 N, d = 42 m, t = 3.1 min = 3.1×60 = 186 s
Substitute these values into equation 1
P = (75×42)/186
P = 16.94 W
Hence the average power delivered by the child = 16.96 W
1. The vibration is perpendicular to the direction of travel of transverse waves.
2. The vibration is parallel to the direction of travel of longitudinal waves.
3. Compression waves contain compressions and rarefactions.
They are longitudinal waves.
4. You produce a transverse wave when you move one end of a
horizontal spring up and down.
5. All waves have wavelengths.
Answer:
Electrophilic aromatic substitution involves a process in an atom that is attached to an aromatic system is replaced by a electrophile. Electrophile is an electron pair acceptor. In the first step of electrophilic aromatic substitution of aniline, aniline has 3 resonance structures.
Explanation:
Aniline undergo a two step electrophilic aromatic substitution. The first step yields both ortho and para groups while the last yield a meta group.
In the first step, the amino group of aniline are strong activating group and ortho/para directing by resonance. This amino groups donates their unshared electrons to the pi-system creating a negative charge on the ortho and para positions. These positions are most reactive towards an electron-poor electrophile.
In the second step, the electrophilic aromatic substitution on aniline proceeds quite slowly to give an unexpected high yield of meta product.
Answer:
Weaken the image of the star
Explanation:
Chromatic aberration is the defect in lens occurs when the light beam deflected by the lens is dispersed in its constituent colors. When the light beam deflected by the lens is dispersed in its constituent colors the image formed by the lens is not just a single point image it scatters images according to different colors of the light.
There are two types of chromatic aberration
Lateral chromatic aberration:
The images formed in lateral chromatic aberration the image of stars is shifted to sideways of the real appearance of star.
Longitudinal chromatic aberration
The images formed in longitudinal chromatic aberration the image of stars is enlarged longitudinally to the real appearance of star. Thus, the image formed in this case is weaken longitudinally
When stars are observed from the earth the due to longitudinal chromatic aberration the image of star is weaken.
