10 x 4^2 = 160 / 8..
V = 20m/s...
...x 8 = 100 miles,meters, metric what ever m stands for after 8 seconds.
This is my guess since the problem says 4m/s^2
V= distance/ ST (traveled/used)
Explanation:
see the attachment.. hope it will help you
The equation for the energy (E) of the electron may be obtained by the equation,
E = hc / λ
where h is Planck's constant, c and λ are speed of light and wavelength, respectively. Substituting the values,
(-2.179x10^-18 - -8.720x10^-20) = (6.626x10^-34)(2.998x10^8)/ λ
From the equation, the value of λ is approximately equal to 9.496x10^-8 m.
779,247 J is the amount of heat released.
<u>Explanation:</u>
The equation that gives the amount of heat supplied is
Where,
E or Q – amount of heat supplied
m- mass
- specific heat capacity of Aluminium
– temperature variation caused by heat change
The amount of heat energies that causes the temperature to vary or 1 K per kg of the material is known as specific heat capacity (c)
Here, Given data:
– 0.900 J/g.K
To convert gram into kilogram, multiply and divide by , we get
Specific heat capacity of aluminum = 900 J/kg. K
m – 5.89 kg
By substituting the known values in the above equation, we get