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dmitriy555 [2]
3 years ago
5

The angular position of a pendulum is represented by the equation u = 0.032 0 cos vt, where u is in radians and v = 4.43 rad/s.

determine the period and length of the pendulum.
Physics
2 answers:
Lerok [7]3 years ago
8 0
It's simple. You just need to apply formular onto problem.
Citrus2011 [14]3 years ago
6 0

Answer:

The period, T = 1.4183 seconds, and

the length of the pendulum, L = 0.5 meters

Explanation:

Formula for period T = 2π/v

Where π = 3.1416

velocity of pendulum, v = 4.43 rad/s

Therefore, T = 2 × 3.1416/4.43 = 1.4183 seconds

Formula for length of a pendulum, L = g/v²

Where g = 9.81 m/s²

v = 4.43 rad/s

Therefore, L = 9.81/4.43² = 0.5 meters.

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Hoochie [10]

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GAS,   LIQUID,    CLOUDS

Explanation:

Water can be in three states: solid, liquid and gas, passing from one to another depending on the pressure and temperature.

In this complementation exercise.

When the water cools down the GAS goes to the LIQUID state, these small drops unite and form the CLOUDS

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One positve and one negative charhe jave a force of -5. 00 N between them. If the force changed to -170 N , by what factor did t
stepladder [879]

Answer:

The distance is shortenend by factor .1715

Explanation:

5 n  = 1/r^2

sqrt (1/5) = r

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5 0
2 years ago
You hear the sound of the firing of a distant cannon 6.9 s after seeing the flash. how far are you from the cannon? (assume 343
EastWind [94]
Let's call d the distance of the cannon from us. We see the flash first, then after 6.9 s we hear the sound. The flash arrives to us traveling at speed of light, which is c=3 \cdot 10^8 m/s, while the sound travels at speed v=343 m/s. Since the magnitude of the  speed of light is much much larger than the speed of sound, we can assume that the flash arrives at our location instantaneously after the firing. 
Then we can say that the sound wave covers a distance d traveling at speed v in a time of t=6.9 s. Since it is a uniformly linear motion, the distance covered by the sound wave is
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Why can astronots open the door at space
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You drop an egg from rest with no air resistance. Which of the following statements is correct? Group of answer choices As it fa
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Answer:

As it falls, its mechanical energy is conserved, but its momentum is not conserved.

Explanation:

The mechanical energy of the egg during the fall is the sum of its potential energy and its kinetic energy:

E = U + K

As we know, mechanical energy is always conserved when there are only conservative forces acting on a system. In this case, the only force acting on the egg is the force of gravity, which is a conservative force (we are neglecting air resistance), therefore mechanical energy is conserved.

In particular, as the egg falls down, its gravitational potential energy U decreases, while its kinetic energy K increases (since its speed increases), but the sum of the two quantities, E, remains constant.

On the contrary, momentum is not conserved. In fact, momentum is given by

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