Change 1m2 in to cm2, mm2 and km2
1 answer:
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Answer:
Explanation:
1. Find spring constant k. From a free body diagram, you will get the forces on the 10 kg mass, with a displacement d. It will be gravity pulling the mass down and the spring force pulling the mass up. The 10 kg mass is in equilibrium. The resulting equation will be:
2. Use the result from 1. to find the equations of motion. In general they are given by:
, where ω is:
To find the amplitude A and the phase angle Ф, use the given initial conditions:
m₂ = 2 kg, x(0) = -0.25 m, v(0) = 2m/s
Solving for Ф:
Solving for A:
The equation for x(t) is now:
The frequency f is given by:
The period T is given by:
First of all, we need to calculate the magnetic field generated by the wire at a distance r=3.90 cm=0.039 m, which is given by:
where I=8.60 A is the current. Substituting numbers in the equation, we find
And now we can calculate the force exerted on the electron, which is given by:
where is the charge of the electron and
is its speed. Substituting data in the formula, we find
Answer:
Explanation:
From the question we are told that:
Density
Frequency
Length
Generally the equation for Frequency is mathematically given by
Therefore