The average kinetic energy of a gas particle is directly proportional to the temperature. An increase in temperature increases the speed in which the gas molecules move. All gases at a given temperature have the same average kinetic energy. Lighter gas molecules move faster than heavier molecules.
Answer:
34.3Hz
Explanation:
We know that
For a pipe open at one end, fundamental frequency (Fo)
is
Fo = v/4L
Where v= 340m/s
Fo = 340/4 x 2.48 = 34.3Hz
Answer:
Liquid
Explanation:
Before anything evaporates, it is in a liquid state.
Answer:
The ratio of the forces is F2/F1 = 1.86
Explanation:
From Newton's second law applied to circular motion, the total force F acting on a body in circular motion is given by
F = mv²/r
Where
m = mass of the body undergoing circular motion
v = linear velocity = ω×r
ω = angular velocity
r = radius of the circular path through which the force acts
So
F = m(ω×r)²/r = mω²×r
Given 2 angular speeds ω1 = 439re/min = 439×2π/60 rad/s = 46 rad/s and
ω2 = 602rev/min = 602×2π/60 rad/s = 63 rad/s
Required to calculate the ratio F2/F1
The mass m and radius r is the same for both forces, so F is dependent on the angular speed
So F2/F1 = ω2²/ω1² = (ω2/ω1)²
F2/F1 = (63/46)² = 1.86
Answer:
A mirror is an image reflecting an object.
Explanation:
yes a mirror is reflective
- A mirror is a reflector of the wave. When light waves reflect the flat surface of a mirror, the same curvature and vergence are retained, in equal but opposite direction, by these waves as by the original waves.
- Coating a piece of glass on one side with glistening metals can convert the glass into a mirror that mirrors light. Window glass may reflect only 8% of the light, while mirrors can display 95% of the light. The glass in a mirror is generally covered in a silver or aluminum layer. dark material is placed on the back to prevent the tearing of the metal (reacting with the air and turning dull). The other side of the glass can be a mirror or a simple glass. This can be used to make windows easily visible, but difficult to view.