A mass M is suspended from a spring and oscillates with a period of 0.840 s. Each complete oscillation results in an amplitude r
1 answer:
The time it takes for the total energy of the oscillator to decrease to 0.50 of its initial value
t= 14.448 s
This is further explained below.
<h3>What is an oscillator?</h3>An electronic oscillator is a circuit that generates a periodic, oscillating electronic signal. This signal is often a sine wave, but it may also be a square wave or a triangle wave. Oscillators are devices that change the direct current that is supplied by a power source into an alternating current signal.
Generally, the equation for amplitude is mathematically given as
equal to the half-energy amplitude
n = 17.2
In conclusion, the time is
t = nT
t= 14.448 s
Read more about oscillators
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Answer:
15.75 m
Explanation:
First, let's look at the top brick by itself. In order for it not to tip over the bottom brick, its center of gravity must be right at the edge of the bottom brick. So the edge of the top brick must be 10.5 m from the edge of the bottom brick.
Now let's look at both bricks as a combined mass. We know the total length of this combined brick is 10.5 m + 21 m = 31.5 m. And we know that for it to not tip over the edge of the surface, its center of gravity must be at the edge. So the edge of the combined brick must be 31.5 m / 2 = 15.75 m from the edge of the surface.
Answer:
a) 1.89 m/s b) 172.1 N
Explanation:
a)
- Applying the work-energy theorem, if we can neglect the friction between truck and road, the total change in kinetic energy must be equal to the work done by the external forces.
- This work, is just 4,475 J.
- So we can write the following equation:
- where m= mass of the truck = 2.5*10³ kg.
- So, we can find the speed v, as follows:
b)
- The work done by the man, is just the horizontal force applied, times the displacement produced by the force horizontally:
- We can solve for F, as follows: