Answer:
the force decreases
Explanation:
Gravitational force is depending on it's mass and the distance between two object
The attachment shows us to understand relationship of it's
F ∝ 1/ (r)2
there for gravitational force is inversely proportional to it's distance . when distance between two object is increased, Then force will be decreased
Answer:
0.23348 A
Explanation:
B = Magnetic field
v = Velocity of electron = ![1.38\times 10^7\ m/s](https://tex.z-dn.net/?f=1.38%5Ctimes%2010%5E7%5C%20m%2Fs)
q = Charge of electron = ![1.6\times 10^{-19}\ C](https://tex.z-dn.net/?f=1.6%5Ctimes%2010%5E%7B-19%7D%5C%20C)
= Vacuum permeability = ![4\pi \times 10^{-7}\ H/m](https://tex.z-dn.net/?f=4%5Cpi%20%5Ctimes%2010%5E%7B-7%7D%5C%20H%2Fm)
r = Radius of circle = 0.026 m
N = Number of turns = 103 turns/cm = ![103\times 100\ turns/m](https://tex.z-dn.net/?f=103%5Ctimes%20100%5C%20turns%2Fm)
I = Current
The magnetic and centripetal force will be balanced
![Bqv=m\frac{v^2}{r}\\\Rightarrow B=\frac{mv}{qr}](https://tex.z-dn.net/?f=Bqv%3Dm%5Cfrac%7Bv%5E2%7D%7Br%7D%5C%5C%5CRightarrow%20B%3D%5Cfrac%7Bmv%7D%7Bqr%7D)
The magnetic field in solenoid is given by
![B=N\mu_0 I\\\Rightarrow I=\frac{B}{N\mu_0}](https://tex.z-dn.net/?f=B%3DN%5Cmu_0%20I%5C%5C%5CRightarrow%20I%3D%5Cfrac%7BB%7D%7BN%5Cmu_0%7D)
From the first equation
![I=\frac{\frac{mv}{qr}}{N\mu_0}\\\Rightarrow I=\frac{mv}{N\mu_0qr}\\\Rightarrow I=\frac{9.11\times 10^{-31}\times 1.38\times 10^7}{103\times 100\times 4\pi \times 10^{-7}\times 1.6\times 10^{-19}\times 0.026}\\\Rightarrow I=0.23348\ A](https://tex.z-dn.net/?f=I%3D%5Cfrac%7B%5Cfrac%7Bmv%7D%7Bqr%7D%7D%7BN%5Cmu_0%7D%5C%5C%5CRightarrow%20I%3D%5Cfrac%7Bmv%7D%7BN%5Cmu_0qr%7D%5C%5C%5CRightarrow%20I%3D%5Cfrac%7B9.11%5Ctimes%2010%5E%7B-31%7D%5Ctimes%201.38%5Ctimes%2010%5E7%7D%7B103%5Ctimes%20100%5Ctimes%204%5Cpi%20%5Ctimes%2010%5E%7B-7%7D%5Ctimes%201.6%5Ctimes%2010%5E%7B-19%7D%5Ctimes%200.026%7D%5C%5C%5CRightarrow%20I%3D0.23348%5C%20A)
The current in the solenoid is 0.23348 A
<span>By F = ∆P/∆t
=>F = n x m x ∆v/∆t
=>F = [242 x 66.1 x 10^-3 x 488]/3.57
=>F = 2186.60 N
By the law of momentum conservation:-
=>(M+m)V = Mv1 + mv2
=>(3630 + 66.1 x 10^-3 x 242) x V = 3630 x v1 + 66.1 x 10^-3 x 242 x 488
=> if we know the initial speed i.e. V we can calculate final speed v1.</span>
Answer:
Explanation:A covalent bond is formed when electrons are shared between non-metal atoms, and the positive nuclei are attracted towards the pair of negative bonded electrons. ... Hence, the hydrogen bond is weaker than ionic and covalent bonds. Example: Water molecules are held to each other by intermolecular forces of attraction.
½ m(s/t) ² which is equivalent to ½ mv².
Where m is mass, s is distance traveled, t is time and v is velocity.