Answer:
v=9.98*10⁻⁴m/s
Explanation:
From De Broglie's wavelength equation which is expressed as
λ=h/p
where h=planks constant, with value 6.626*10⁻³⁴J
p is the momentum expressed as p=mv
where m=mass and v=velocity. Hence we can rewrite the wavelength equation as
λ=h/mv
mass of hydrogen is given as m=1.66*10⁻²⁴kg
hence if we make the speed the subject of formula we have
V=h/mλ
V=(6.626*10⁻³⁴J)/(1.66*10⁻²⁴kg*400*10⁻⁹)
v=9.98(10⁻³⁻³⁴⁺²⁴⁺⁹)
v=9.98*10⁻⁴m/s
Explanation:
The following measures can be taken to prevent or control high temperature caused by thermal pollution:
1. Heated water from the industries can treated before discharging directly to the water bodies.
2. Heated water from the industries can be treated by the installation of cooling ponds and cooling towers.
3. Industrial treated water can be recycled for domestic use or industrial heating.
4. Through artificial lakes: In this lake Industries can discharge their used or heated water at one end and water for cooling purposes may be withdrawn from the other end. The heat is eventually dissipated through evaporation.
Answer:
12.9121148614 m/s
35.9393048982 m
Explanation:
t = Time taken
u = Initial velocity
s = Displacement
a = Acceleration
g = Acceleration due to gravity = 9.81 m/s² = a
Time taken for the bag to fall is 2.78337865516 seconds
Time she has been jogging for
9+2.78337865516 = 11.78337865516 seconds
Total distance traveled by her
Henrietta is 35.9393048982 m away
Velocity of throwing
The velocity of throwing is 12.9121148614 m/s
The properties of the wave don't determine its speed. The properties of the medium do. You can FIND the speed by measuring the wave's frequency and wavelength.
Incorrect statement in Dalton's original atomic theory are that atoms are indestructible and statement that all atoms of one element are same mass and characteristics.
Modern atomic theory is, of course, a little bit updated but original Daltons's theory is still remains. By modern atomic theory atoms can be destructed by nuclear reaction, but no with chemical reaction. Also there are different kinds of atoms in one element, their mass can be different.
