Answer:
The lone pair of electrons occupy more space because the electrostatic force becomes weaker.
Explanation:
When there is a bond pair of electrons in the 2 positively charged the atomic nuclei draw the electron density towards them, thereby reducing the bond diameter.
In the case of the lone pair, only 1 nucleus is present, and the enticing electrostatic force becomes weaker and the intensity of the electrons will be increases. Therefore, the lone pair occupies more space than the pair of bonds.
Answer:
Speed of the ball in position D 
<u>Explanation:</u>
Given:
Position of B=11.3
Position of D=1.9
Velocity of B=6.2
To Find:
Velocity of D
Solution:
According to the formula, Velocity is given as
![V d=\sqrt{\left[V b^{2}+(2 \times g \times d y)\right]}](https://tex.z-dn.net/?f=V%20d%3D%5Csqrt%7B%5Cleft%5BV%20b%5E%7B2%7D%2B%282%20%5Ctimes%20g%20%5Ctimes%20d%20y%29%5Cright%5D%7D)
=Velocity of B
=Velocity of D
g=acceleration due to gravity=9.8 m/s^2
=Change in position of B and D
Substitute the all values in the above equation we get
![V d=\sqrt{\left[6.2^{2}+(2 \times 9.8 \times(11.3-1.9))\right]}](https://tex.z-dn.net/?f=V%20d%3D%5Csqrt%7B%5Cleft%5B6.2%5E%7B2%7D%2B%282%20%5Ctimes%209.8%20%5Ctimes%2811.3-1.9%29%29%5Cright%5D%7D)
![=\sqrt{[38.44+(2 \times 9.8 \times(9.4))]}](https://tex.z-dn.net/?f=%3D%5Csqrt%7B%5B38.44%2B%282%20%5Ctimes%209.8%20%5Ctimes%289.4%29%29%5D%7D)
![=\sqrt{[38.44+(19.6 \times 9.4)]}](https://tex.z-dn.net/?f=%3D%5Csqrt%7B%5B38.44%2B%2819.6%20%5Ctimes%209.4%29%5D%7D)
Result :
The velocity of D is
Explanation:
Mass of the crate, m = 68 kg
We need to find the resulting acceleration if :
(a) Force, P = 0
P = m a
⇒ a = 0
(b) P = 181 N
(c) P = 352 N
Hence, this is the required solution.
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Answer:
2677.3 N
Explanation:
v₀ = initial speed of the hand = 4.75 m/s
v = final speed of the hand = 0 m/s
m = Total mass of hand and forearm = 1.55 kg
t = time interval for hand to come to rest = 2.75 ms = 0.00275 s
F = Force applied on the leg
Using Impulse-change in momentum equation
F t = m (v - v₀)
F (0.00275) = (1.55) (0 - 4.75)
F = - 2677.3 N
magnitude of force = 2677.3 N
