Answer:
m₂ = 1.2 [kg]
Explanation:
Since the explosion causes a force in a certain instant of time, for both bodies there is an equal impulse. In such a way that we can relate both impulses to be able to find the mass of the body needed in the next equation.

where:
m₁ = mass of the first piece = 0.75 [kg]
v₁ = velocity of the first piece = 7.2 [m/s]
m₂ = mass of the second piece [kg]
v₂ = velocity of the second piece = 4.5 [m/s]
![0.75*7.2=m_{2}*4.5\\m_{2}=1.2[kg]](https://tex.z-dn.net/?f=0.75%2A7.2%3Dm_%7B2%7D%2A4.5%5C%5Cm_%7B2%7D%3D1.2%5Bkg%5D)
Answer:
0.733J/g°C
Explanation:
Using the formula
Q=mcΔθ
Q=38.5J, c=? , m=17.5g , Δθ=3°C
c= Q/(mΔθ)

c=0.733J/g°C
Answer:
A-Z
Explanation:
A proton has an estimated weight of 1.
The wave interaction that is shown in the photo is refraction as light moves from air to water.
<h3>What is refraction?</h3>
Refraction refers to the change in the frequency of a wave and the direction of the wave as it moves from one medium to another. We know that waves makes a body under water to look slightly different than when it is in air.
Thus, the wave interaction that is shown in the photo is refraction as light moves from air to water.
Learn more about refraction:brainly.com/question/14760207
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