Answer:
b. 9.5°C
Explanation:
= Mass of ice = 50 g
= Initial temperature of water and Aluminum = 30°C
= Latent heat of fusion = ![3.33\times 10^5\ J/kg^{\circ}C](https://tex.z-dn.net/?f=3.33%5Ctimes%2010%5E5%5C%20J%2Fkg%5E%7B%5Ccirc%7DC)
= Mass of water = 200 g
= Specific heat of water = 4186 J/kg⋅°C
= Mass of Aluminum = 80 g
= Specific heat of Aluminum = 900 J/kg⋅°C
The equation of the system's heat exchange is given by
![m_i(L_f+c_wT)+m_wc_w(T-T_i)+m_{Al}c_{Al}=0\\\Rightarrow 0.05\times (3.33\times 10^5+4186\times T)+0.2\times 4186(T-30)+0.08\times 900(T-30)=0\\\Rightarrow 1118.5T-10626=0\\\Rightarrow T=\dfrac{10626}{1118.5}\\\Rightarrow T=9.50022\ ^{\circ}C](https://tex.z-dn.net/?f=m_i%28L_f%2Bc_wT%29%2Bm_wc_w%28T-T_i%29%2Bm_%7BAl%7Dc_%7BAl%7D%3D0%5C%5C%5CRightarrow%200.05%5Ctimes%20%283.33%5Ctimes%2010%5E5%2B4186%5Ctimes%20T%29%2B0.2%5Ctimes%204186%28T-30%29%2B0.08%5Ctimes%20900%28T-30%29%3D0%5C%5C%5CRightarrow%201118.5T-10626%3D0%5C%5C%5CRightarrow%20T%3D%5Cdfrac%7B10626%7D%7B1118.5%7D%5C%5C%5CRightarrow%20T%3D9.50022%5C%20%5E%7B%5Ccirc%7DC)
The final equilibrium temperature is 9.50022°C
If you only know its speed, that's not enough information to catch it. You could even chase it at DOUBLE that speed, and you'd never catch it if you were chasing in the wrong direction.
You also have to know the DIRECTION the runaway car is going, so that you can chase in the same direction.
Now that you know its speed AND direction, you know its velocity. You need that information to have any chance of catching it.
Answer:3.87*10^-4
Explanation:
What is the decrease in mass, delta mass Xe , of the xenon nucleus as a result of this deca
We have been given the wavelength of the gamma ray, find the frequency using c = freq*wavelength.
C=f*lambda
3*10^8=f*3.44*10^-12
F=0.87*10^20 hz
Then with the frequency, find the energy emitted using equation
E=hf E = freq*Plank's constant
E=.87*10^20*6.62*10^-34
E=575.94*10^(-16)
With this energy, convert into MeV from joules.
With the energy in MeV, use E=mc^2 using c^2 = 931.5 MeV/u.
Plugging and computing all necessary numbers gives you
3.87*10^-4 u.
In optics, chromatic aberration (abbreviated CA; also called chromatic distortion and spherochromatism) is an effect resulting from dispersion in which there is a failure of a lens to focus all colors to the same convergence point.[1] It occurs because lenses have different refractive indices for different wavelengths of light. The refractive index of transparent materials decreases with increasing wavelength in degrees unique to each.