The forece you have to overcome to start an object moving is called Inertia.
Answer:
a) The wavelength of light is 6×10^-7 m.
b) The size of the central peak is 6×10^-3 m.
Explanation:
let:
α be the distance between the 1st and 2nd maxima
d = 0.4 mm be the grating slit space
X be the distance to the screen
a) α = λ×X/d
λ = α×d/X
= (0.3×10^-2)×(0.4×10^-3)/(2)
= 6×10^-7 m
Therefore, the wavelength of light is 6×10^-7 m.
b) the size of the central peak is given by:
D = 2×λ×X/d
= 2×(6×10^-7)×(2)/(0.4×10^-3)
= 6×10^-3 m
Therefore, the size of the central peak is 6×10^-3 m.
Answer:
v = 225 m/s
Explanation:
Given,
The momentum of the spaceship, p = mv = 45,000 Kg m/s
The mass of the spaceship, m = 200 Kg
The velocity of the spaceship, v = ?
The relationship between the momentum, mass, and velocity is given by the formula
p = mv Kg m/s
Therefore,
v = p/m m/s
Substituting the values in the above equation
v = 45,000 Kg m/s / 200 Kg
= 225 m/s
Hence, the magnitude of velocity of the spaceship is, v = 225 m/s
For water, as the temperature goes up the density of the liquid water
decreases therefore it becomes less dense so it tends to rise upward.
And since the temperature here is higher, heat flows from the higher
temperature to the lower so it releases energy to the environment.
Therefore, the correct statements are 2, 3 and 5.
Answer:
thermosphere!!
Explanation:
thermosphere has the lowest air pressure!!