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3 years ago

12

36 is what percent of 150?

2 answers:

babunello [35]3 years ago

7 0

Answer:

24

Explanation:

Flauer [41]3 years ago

5 0

Answer:

24 my dear friend

Explanation:

Give me brianliest please

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In the produce section of a supermarket, five pears are placed on a spring scale. The placement of the pears stretches the sprin

tankabanditka [31]

Answer:

The displacement of the spring due to weight is 0.043 m

Explanation:

Given :

Mass $m = 2$ Kg

Spring constant $k = 450 \frac{N}{m}$

According to the hooke's law,

$F = -kx$

Where $F =$ force, $x =$ displacement

Here,

$F = mg$ ( $g = 9.8 \frac{m}{s^{2} }$ )

$F = 2 \times 9.8 = 19.6$ N

Now for finding displacement,

$x = \frac{F}{k}$

Here minus sign only represent the direction so we take magnitude of it.

$x = \frac{19.6}{450}$

$x = 0.043$ m

Therefore, the displacement of the spring due to weight is 0.043 m

8 0

4 years ago

A small object with mass 1.30 kg is mounted on one end of arod

Julli [10]

Answer:

(a) $I_{system} = 1.014\ kg.m^{2}$

(b) $\tau = 0.0179\ N-m$

Solution:

As per the question:

Mass of the object, m = 1.30 kg

Length of the rod, L = 0.780 m

Angular speed, $\omega = 5010\ rev/min$

Now,

(a) To calculate the rotational inertia of the system about the axis of rotation:

Since, the rod is mass less, the moment of inertia of the rotating system and that of the object about the rotation axis will be equal:

$I_{system} = ML^{2} = 1.30\times (0.780)^{2} = 0.791\ kg.m^{2}$

(b) To calculate the applied torque required for the system to rotate at constant speed:

Drag Force, F = $2.30\times 10^{- 2}\ N$

$\tau = FLsin\theta 90 = 2.30\times 10^{- 2}\times 0.780\times 1 = 0.0179\ N-m$

3 0

3 years ago

"how long would it take for a ball dropped from the top of a 400-foot building to hit the ground? round your answer to two decim

Lelechka [254]

Hello

Let's convert first the height from foot to meters:
$S=400~ft=121.92~m$
This is the space covered by the ball in its accelerated motion, where the acceleration is the gravitational acceleration:
$a=g=9.81~m/s^2$
The law of motion is given by
$S= \frac{1}{2}at^2$
Re-arranging, we can get the total time of the motion:
$t= \sqrt{ \frac{2S}{a} }=4.99~s
$
which is the time the ball takes to hit the ground.

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3 years ago

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The effect produced when two or more sound waves pass through the same point simultaneously is called?

navik [9.2K]

The answer to the question is sound

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3 years ago

A subtances that is made up of only one kind of atom is of Atom is

weeeeeb [17]

Its a compound hope this helped u<span />

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3 years ago