Answer:
Thus, the change in the weight of the person is 1.6N , option c is correct.
Explanation:
Answer:
A chemical reaction
Explanation:
In a physical change the chemical composition of a matter stays the same. One example is a change in state of matter. Consider water, you can heat it to vapour and cool it to form ice but you can get the exact same mass and colour after any physical change happens.
To form a two or more substance an internal arrangement of atoms must happen. For that chemical change should occur as only in chemical reactions atoms are rearrange to form new substances.
HELP ME PLEASE
Silently he crept through jagged thornbushes. Bare feet moved swiftly over hot, arid soil to the edge of a waterhole where the kudu was drinking. The great animal suddenly looked up, spiral horns curving sharply into the endless African sky. Nsue did not reach for his pouch of poisoned arrows. He had no heart for killing. This would not be the day he would change his childish boyhood name.
How does paragraph 1 contribute to Nsue’s development?
A.
It establishes Nsue’s disappointment at not finding a suitable animal to bring to the feast.
B.
It establishes Nsue’s apprehension of participating in the Festival of the New Moon.
C.
It establishes Nsue’s desire to become a great storyteller like Gao, the Old One.
D.
It establishes Nsue’s motivation to find something to take to the feast.
Answer:
A) because wave speed remains constant.
Explanation:
The wave speed of a wave in a medium depends on the nature of the medium.
For transverse waves in a string given by,
, T = tension , m = linear density
For longitudinal waves in a solid,
, ξ = modulus of elasticity, ρ = density
Like wise for different media, different properties and parameters govern the speed of waves moving through them.
It is important to mind in v = fλ ,f or λ does not influence on speed of wave in a medium but shows how f and λ varies as a wave propagate in a medium(/media).
