Answer:
The appropriate speed will be "20 m/s".
Explanation:
The given values are:
Wavelength,
λ = 5.0 M
Frequency,
f = 4 Hz
Now,
The speed of the wave will be:
⇒ ![V=f\times \lambda](https://tex.z-dn.net/?f=V%3Df%5Ctimes%20%5Clambda)
On putting the values, we get
⇒ ![=4\times 5.0](https://tex.z-dn.net/?f=%3D4%5Ctimes%205.0)
⇒ ![=20 \ m/s](https://tex.z-dn.net/?f=%3D20%20%5C%20m%2Fs)
Answer:
![2p^{2}](https://tex.z-dn.net/?f=2p%5E%7B2%7D)
Explanation:
Simply
![2p^{2}](https://tex.z-dn.net/?f=2p%5E%7B2%7D)
Coal has two valent electrons, so there is 2 in 2p orbital
Answer:
Velocity = 120 km/h in north
Speed = 120 km/h
Explanation:
Given data:
Distance = 300 km north
Time taken = 2.5 hr
Speed and velocity = ?
Solution:
Speed = distance / time
Speed = 300 km / 2.5 h
Speed = 120 km/h
Velocity = change in position / change in time
Velocity = 300 km north / 2.5 hr
Velocity = 120 km/h in north
Answer:
The temperature remains constant. after the change occurs and temp remains the same
Explanation:
Remains constant because the phase change is absorbing the energy, after the phase change occurs it is then increasing in temperature again.
Answer:
2.22 × 10^-5M
Explanation:
From Beer-Lambert's law;
A=εcl
Where A = absorbance of GMP= 0.2
ε= molar extinction coefficient of GMP = 9000 M-1cm-1
c= concentration of GMP= the unknown
l= path length = 1 cm
c= A/εl = 0.2/ 9000 M-1cm-1 × 1 cm
c= 2.22 × 10^-5M