Explanation:
Angular momentum is conserved.
I₁ ω₁ = I₂ ω₂
(½ Mr² + md²) ω₁ = (½ Mr²) ω₂
(½ (35 kg) (2.3 m)² + (84 kg) (2.3 m)²) (0.28 rev/s) = (½ (35 kg) (2.3 m)²) ω
ω = 1.624 rev/s
ω = 10.2 rad/s
Round as needed.
Explanation:
a.) kg(m/s)(1/s) = force (N)
b.) (kg/s)(m/s) = force (N)
c.) (kg/s)(m/s) = force (N)
d.) (kg/s)(m/s) = force (N)
Answer:
d y / x = m λ
Explanation:
When the laser beam, which is a coherent light, hits the slits, part of each beam passes through each slit.
When this is observed on a screen that is quite far from the slits, a series of intense linear separated by dark areas. The explanation for this distribution of the light pattern is that when adding the rays that come out of the slits they travel different distances, which introduces a difference in optical path and if this difference is an integer multiple of the wavelength, a bright line
d sin θ = m λ
Where d is the distance between the slits (0.1 mm)
Also, since the angle of the measurements is small, we can approximate the tangent
tan θ = y / x = sin θ /sin θ
sint θ = y / x
Substituting into the equation
d y / x = m λ
This expression gives the location of the bright lines on the screen
Answer:
The correct option is : B. stagnation
Explanation:
Air mass is a volume of air, which is described on the basis of water vapor content and temperature. It has the ability to adapt to the characteristics of surface below it and can travel thousands of miles from its source region.
An ideal source region of an air mass must fulfill the following two criteria:
1. It should be a large and uniform area.
2. the area should have stagnant circulation of atmospheric air .
Answer:
Use the formula ∆H = m x s x ∆T to solve.
Explanation:
Once you have m, the mass of your reactants, s, the specific heat of your product, and ∆T, the temperature change from your reaction, you are prepared to find the enthalpy of reaction. Simply plug your values into the formula ∆H = m x s x ∆T and multiply to solve.
