༼ つ ◕_◕ ༽つ༼ つ ◕_◕ ༽つ༼ つ ◕_◕ ༽つ☜(ﾟヮﾟ☜)(☞ﾟヮﾟ)☞☜(ﾟヮﾟ☜)(☞ﾟヮﾟ)☞( ´･･)ﾉ(._.`)

Physics

2 answers:

Kitty [74]3 years ago

8 0

༼ つ ◕_◕ ༽つ༼ つ ◕_◕ ༽つ༼ つ ◕_◕ ༽つ☜(ﾟヮﾟ☜)(☞ﾟヮﾟ)☞☜(ﾟヮﾟ☜)(☞ﾟヮﾟ)☞( ´･･)ﾉ(._.`)?

Vlada [557]3 years ago

4 0

Answer:

°∠° °∡° °×°

Explanation:

Yes. This is perfect. It is the best.

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Which physical property of matter depends on push

liberstina [14]

Answer:

I would say contact forces

Explanation:

This questions is kind of missing some info but I do know that contact forces need to be either pushed or pulled for a force to happen.

Hope this helped

4 0

3 years ago

A block of mass 0.84 kg is suspended by a string which is wrapped so that it is at a radius of 0.061 m from the center of a pull

lora16 [44]

Answer:

$E_l = 1.713 J$

Explanation:

Given data:

mass of block is $M_b = 0.84 kg$

radius of block = 0.061 m

moment of inertia is $6.20 \times 10^{-3} kg m^2$

D is distance covered by block = 0.65 m

speed of block is 1.705 m/s

From conservation of momentum we have

$M_b g D = \frac{1}{2} M_b v^2 + \frac{1}{2} I \omega^2 + E_{loss}$

$0.84 \times 9.81 \times 0.65 = \frac{1}{2}\times 0.84 \times 1.705^2 +\frac{1}{2} \times 6.2 \times 10^{-3} [\frac{1.705}{0.061}]^2 + E_l$

solving for energy loss

$E_l = 1.713 J$

3 0

3 years ago

Even when the head is held erect, as in the figure below, its center of mass is not directly over the principal point of support

alexandr1967 [171]

We are asked to determine the force required by the neck muscle in order to keep the head in equilibrium. To do that we will add the torques produced by the muscle force and the weight of the head. We will use torque in the clockwise direction to be negative, therefore, we have: