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3 years ago

Will an object with a density of 1.05 g/ml float or sink in water? Explain

Physics

1 answer:

allsm [11]3 years ago

3 0

The density of water at RTP is 0.998 g/ml so the object will sink in water due to its greater density.

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Https://student.masteryconnect

maria [59]

Answer:

a nucleus

Explanation:

ik.... ....... v

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3 years ago

As an intern at an engineering firm, you are asked to measure the moment of inertia of a large wheel for rotation about an axis

klio [65]

Hi there!

We can begin by finding the acceleration of the block.

Use the kinematic equation:

$d = v_0t + \frac{1}{2}at^2$

The block starts from rest, so:

$d = \frac{1}{2}at^2\\\\12 = \frac{1}{2}a(4^2)\\\\\frac{24}{16} = a = 1.5 m/s^2$

Now, we can do a summation of forces of the block using Newton's Second Law:

$F = ma = m_bg - T$

mb = mass of the block

T = tension of string

Solve for tension:

$T = m_bg - ma = 8.2(9.8) - 8.2(1.5) = 68.06 N$

Now, we can do a summation of torques for the wheel:

$\Sigma \tau = rF\\\\\Sigma\tau = rT$

Rewrite:

$I\alpha = rT$

We solved that the linear acceleration is 1.5 m/s², so we can solve for the angular acceleration using the following:

$\alpha = a/r\\\\\alpha = 1.5/.42= 3.57 rad/sec^2$

Now, plug in the values into the equation:

$I(3.57) = (0.42)(68.06)\\\\I = (0.42)(68.06)/(3.57) = \boxed{8.00 kgm^2}$

8 0

3 years ago

Velocity is a measure of both speed and of the motion of an object.

barxatty [35]

What exactly is ur question?

5 0

3 years ago

Read 2 more answers

Which of the following choices is the best example of potential energy?

jekas [21]

Answer:

A basketball sitting still in a players hands

Explanation:

The other 3 answers have the ball in motion (going towards the basket, bouncing, and rolling) so that would be kinetic energy.

When the basketball is sitting in the player's hands, it has the potential to be in motion.

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3 years ago

What would happen if there were no enzymes in the human body?

MakcuM [25]

Answer:

Explanation:wwwwwwwwwwwwwwwwwwwwww

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3 years ago

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