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3 years ago

Which statement is true of an object in equilibrium?

Physics

2 answers:

stepan [7]3 years ago

7 0

Answer:

C. The sum of all forces acting on the object is zero.

Explanation: Any body can be in state of equilibrium when sum of all the forces acting on the body are zero. State of equilibrium is also called as the state of balance. Equilibrium can be static equilibrium (when body is at rest), transitional equilibrium (when no linear motion) and rotational equilibrium (when no circular motion).

Brilliant_brown [7]3 years ago

6 0

Answer:

Explanation:

An equilibrium is when all forces are the same or canceled out. So it would have to be c.

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You are trying to hear your friend give directions to new store in town. But from your distance (1 point) of 15 m you only hear

Marat540 [252]

Answer:

option D

Explanation:

given,

Intensity of sound = 20 dB

distance = 15 m

intensity of sound is increased to = 50 dB

distance between the sound level = ?

Using relation

$L_2 = L_1 - |20(log \dfrac{r_2}{r_1})|$

L₁ = 20 dB L₂ = 50 dB r₁ = 15 m r₂ = ?

$log (\dfrac{r_2}{r_1}) = \dfrac{L_1 -L_2}{20}$

$\dfrac{r_2}{r_1}= 10^{\dfrac{|L_1 -L_2|}{20}}$

$r_2 =r_1 10^{\dfrac{|L_1 -L_2|}{20}}$

$r_2 =15 \times 10^{\dfrac{|20-50|}{20}}$

$r_2 =15 \times 10^{-1.5}$

r₂ = 0.47 m

r₂ = 47 cm

hence, the correct answer is option D

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3 years ago

Why might the 1990 earthquake and volcanic eruption in Luzon be related?

Art [367]

I am not sure but i think the answer is C

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3 years ago

Just wanna make sure im right

NikAS [45]

It is right have a good day

explanation step by step

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3 years ago

Which phrase describes speed?

Anna11 [10]

Answer:

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Explanation:

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2 years ago

Read 2 more answers

A simple pendulum consisting of a bob of mass m attached to a string of length L swings with a period T. If the pendulum is take

Juli2301 [7.4K]

To solve this problem we will use the definition of the period in a simple pendulum, which warns that it is dependent on its length and gravity as follows:

$T =2\pi \sqrt{\frac{L}{g}}$

Here,

L = Length

g = Acceleration due to gravity

We can realize that $2 \pi$ is a constant so it is proportional to the square root of its length over its gravity,

$T \propto \sqrt{\frac{L}{g}}$

Since the body is in constant free fall, that is, a point where gravity tends to be zero:

$g \rightarrow 0 \Rightarrow T \rightarrow \infty$

The value of the period will tend to infinity. This indicates that the pendulum will no longer oscillate because both the pendulum and the point to which it is attached are in free fall.

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3 years ago