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Brass is a Homogeneous mixture.
Homogeneous mixtures are those in which the components are in the same proportions in all the sample. In brass, as the two metals are fused together to form an alloy, the composition is the same in the entire piece. Brass is also called a Solid Solution. Brass is not a pure substance because it has two different elements in its composition.
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All waves have an amplitude, wavelength, and frequency.
Amplitude is how far away the wave moves from its resting place. When drawn on a graph, the amplitude is the distance between the upper (crests) and lower (troughs) points and their center on the wave.
Wavelength is the distance two crests or troughs are away from each other.
Frequency is the number of waves produced in a set amount of time. The unit used to measure frequency is Hertz (Hz).
With sound waves, the frequency determines the pitch. The higher the frequency, the higher the pitch, and vice versa. So, a bass drum, which has a low pitch, would have a lower frequency than a mosquito's whine, which is very high pitched.
Light waves are actually electromagnetic waves. Their frequency determines what kind of wave they are, whether it's gamma rays, ultraviolet, x-rays, or something else.
The object A has the greater mass compared to object B.
<u>Explanation:
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The weight of any object on any planet is the measurement of gravity’s influence acting on the mass of the object. So for Earth, the acceleration will be acting on the object A’s mass (m) in Earth leading to the weight of the object A as 750 N.
While the acceleration of Jupiter will be acting on the object B’s mass kept in Jupiter to attain the weight of 750 N. So, the mass of both the objects at their respective planet will vary depending on the acceleration of each planet. We can check this as below:

So,

Thus,

Similarly for object B,


Thus,

Thus, the mass of object A is greater than the mass of object B.
Answer:
B
Explanation:
Friction acts in a direction opposite to the motion of an object
Answer:Proton (charge of +e, in the nucleus), Neutron (0 charge, in the nucleus), and Electron (charge of –e, outside the nucleus).Nov 13, 2015
Explanation: YA