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Nady [450]
3 years ago
14

Si la frecuencia de una onda de 12 Hz y su longitud es de 4 metro ¿cuál será su velocidad?

Physics
1 answer:
ella [17]3 years ago
7 0

Answer: srry I don’t understand that language

Explanation:

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3 years ago
A convex mirror is placed to the right of an object. The image formed by the mirror will be a
Harrizon [31]

I think it’s C but I’m not too sure

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3 years ago
Read 2 more answers
A train moving at 5 m/sec passed a track gang and then accelerated uniformly a rate of 1.2 m/sec/sec for 5 min. How far did the
Amanda [17]

Answer:

S = V0 t + 1/2 a t^2

S = 5 m/s * 300 s + 1/2 * 1.2 m/s * (300 s^2)

S = 1500 m + .6 * 90000 m = 55,500 m

Check:     V0 = 5 m/s

                V2 = V0 + a t  = 5 + 1.2 * 300 = 365 m/s

Vav = (V1 + V2) / 2 = (5 + 365) / 2 = 185 m/s     (note uniform motion)

S = 185 * 300 = 55,500 m

We calculated V2 above at 365 m/s  the speed after 300 sec

3 0
3 years ago
1. How much energy is needed just to melt 0.56kg of ice at 0◦ C?
ivann1987 [24]

Answer:

This will require 266.9 of heat energy.

Explanation:

To calculate the energy required to raise the temperature of any given substance, here's what you require:The mass of the material, m The temperature change that occurs,  ΔT The specific heat capacity of the material,

c

(which you can look up). This is the amount of heat required to raise 1 gram of that substance by 1°C.

Here is a source of values of

c for different substances:

Once you have all that, this is the equation:

Q=m×c×ΔT(Q is usually used to symbolize that heat required in a case like this.)For water, the value of c is 4.186g°C So, Q=750×4.186×85=266=858=266.858

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2 years ago
True or False: pH is a measure of how acidic or basic a solution is.
Salsk061 [2.6K]

Answer:

Explanation:

True

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3 years ago
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