The next time the string will have the same appearance that it did at t=0s is 2.29 s.
<h3>
Frequency of the wave</h3>
v = fλ
f = v/λ
where;
half of the upward pulse is a quarter of wavelength = ¹/₄ x 4 m = 1 m
f = 3.5/1
f = 3.5 Hz
<h3>Time of motion when the pulse is at 4 m</h3>
t1 = 4/3.5 = 1.143 s
The next time the string will have the same appearance that it did at t=0s.
d = 4 m x 2 = 8 m
t2 = 8/3.5
t2 = 2.29 s
Thus, the next time the string will have the same appearance that it did at t=0s is 2.29 s.
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A carbonate. Hope this helps!
Answer:
The electrons in oxygen are paired while in nitrogen, they are not.
Explanation:
To analyse this we start with writing out the ground state electronic configurations for both elements.
Oxygen: 1s²2s²2p4 meaning the p subshell has the following arrangement of electrons ↑↓ ↑ ↑
Nitrogen : 1s²2s²2p³ meaning the p subshell has the following arrangement of electrons ↑ ↑ ↑
Clearly the paired electron in oxygen will be experiencing repulsion from the electron it shares an orbital with causing it to be removed easily. The electrons in nitrogen are unpaired, each orbital is singly occupied
(a) Centripetal: , tangential:
The radius of the track (which is the distance of the car from the centre of the circular path) is
r = 0.30 km = 300 m
The angular acceleration is
We can find the angular velocity of the car after half of a lap using the equivalent of the SUVAT equation for rotational motions:
where
since the car starts from rest
is the angular displacement after half a lap
Solving for ,
Now we can find the centripetal acceleration with the formula:
while the tangential acceleration is simply given by
(b) The mass of the car is not given, so it is not possible to find the forces.
The comparison of the Lagrangian and Newton methods are explained. Explanation:
The Newton-Euler Method is derived by Newton's Second Law of Motion, that describes the dynamic systems in terms of force and momentum.
It deals with concentration of particles to calculate the overall diffusion and convection of a number of particles.
The Lagrangian Method the dynamic behavior is described in terms of work and energy.
It deals with individual particles to calculate the trajectory of each particle separately.