Answer:
Wavelength, 
Explanation:
It is given that,
Velocity of an electron, 
Mass of an electron, 
We need to find the wavelength of an electron. It can be calculated using the De- Broglie wavelength as :
So, the wavelength of an electron is 
. Hence, this is the required solution.
I think the correct answer from the choices listed above is the second option. An impact of a thermoelectric power plant on the environment would be it <span>uses a lot of water which will significantly decrease the supply and amount of water available for use. Hope this answers the question. Have a nice day. </span>
Answer:
a burning piece of converts Chemical energy into Heat(Thermal) and Light energy
Explanation:
d = Diameter of wheel = 27 cm
r = Radius = 
m = Mass of wheel = 800 g
= Initial angular velocity = 
Equation of rotational motion
Moment of inertia is given by
Torque is given by
The torque the friction exerts is -0.0037406448 Nm
For more information on torque and moment of inertia refer
brainly.com/question/13936874
brainly.com/question/3406242
Answer:
4.2 J
Explanation:
Specific heat capacity: This is defined as the amount of a heat required to rise a unit mass of a substance through a temperature of 1 K
From specific heat capacity,
Q = cmΔt.............................. Equation 1
Where Q = amount of energy absorbed or lost, c = specific heat capacity of water, m = mass of water, Δt = Temperature rise.
Given: m = 1 g = 0.001 kg, Δt = 1 °C
Constant : c = 4200 J/kg.°C
Substitute into equation 1
Q = 0.001×4200(1)
Q = 4.2 J.
Hence the energy absorbed or lost = 4.2 J
