The upward force of the chain on the diamond would be the tension in the chain, and this tension would have to support the weight of the 45g that hangs from the chain.
mass = 45 g = 45/1000 kg = 0.045kg
Weight = mg = 0.045 * 10 ≈ 0.45N, g ≈ 10 m/s²
So the upward force is ≈ 0.45N.
Explanation:
a. " for every action there is an equal and opposite reaction".
b. The electric fan does not stop moving just after the switch turns off because of rational inertia force.
c. The force applied to first vehicle is 120N.
d. In my view it doesn't support the law of conservation of momentum. Momentum of 1 and 2 object before the collision is equal to the total momentum of two object after collision.
Proton : 0.00000000000000000000000161726
Electron : 0.00000000000000000000000000091093
Take them away =
1.616349e−24
(that's what it gave me on the calculator when I did proton - electron)
<span>This is impossible to calculate without knowing the speed of each vehicle. </span>
Answer:
σ = 1.52 10⁻¹² 1 /Ω m
Explanation:
The current density is linear in the atmosphere, so it complies with Ohm's law
J = σ E
Where J is the current density, sigma is the electrical inductance and E is the electric field
σ = J / E
σ = 7.3 10⁻¹³ / 48
σ = 1.52 10⁻¹² A / V 1 / m
σ = 1.52 10⁻¹² 1 /Ω m
