Answer:
f = 409 Hz
Explanation:
We have,
Length of the open organ pipe, l = 0.29 m
Frequency of vibration of second overtone,
It is required to find the fundamental frequency of the pipe. For the open organ pipe, the frequency of second overtone is given by :
v is speed of sound
Let f is the fundamental frequency. It is given by :
The relation between f and f₂ can be written as :
So, the fundamental frequency of the pipe is 409 Hz.
the nuclear fusion reaction occurs just outside the inner core, creating an explosive force that keeps the star 'inflated.' Gravitational pull toward the star's center of mass keeps enough pressure on the core to keep the heat and pressure necessary for fusion to occur.
I hope this will be the answer of all of your above questions :)
Answer:
Efriction = 768.23 [kJ]
Explanation:
In order to solve this problem we must use the principle of energy conservation. Where it tells us that the energy of a system plus the work applied or performed by that system, will be equal to the energy in the final state. We have two states the initial at the time of the balloon jump and the final state when the parachutist lands.
We must identify the types of energy in each state, in the initial state there is only potential energy, since the reference level is in the ground, at the reference point the potential energy is zero. At the time of landing the parachutist will only have potential energy, since it reaches the reference level.
The friction force acts in the opposite direction to the movement, therefore it will have a negative sign.
where:
m = mass = 56 [kg]
h = elevation = 1400 [m]
v = velocity = 5.6 [m/s]
Answer:
4 hydrogen atoms can form chemical bond with 1 carbon atom.
Explanation:
CH4. methane
Answer:
Explanation:
The kinetic energy of an object is given by
where
m is the mass of the object
v is its speed
For the car in this problem,
m = 1400 kg
v = 30 m/s
Therefore, the kinetic energy of the car is