2 years ago

Write an original definition for periodic

Physics

1 answer:

shepuryov [24]2 years ago

6 0

I didn't want to type all of this, so instead I showed proof and gave you the answer.

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Which information about the earth would not be represented when a globe is used as a model?

egoroff_w [7]

A globe sitting on the desk can't demonstrate the speed of axial rotation
or the speed of orbital revolution.

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3 years ago

Which of the following is a subatomic particle?

mr Goodwill [35]

Answer:

neutron.

Explanation:

subatomic particles include,

neutron.

proton.

electron.

hope it helps. :)

4 0

2 years ago

A 25 kg rock resting on the bottom of a lake must be moved from the paths of boats. The rock has a density of 2350 kg/m^3. What

algol13

Answer:

The force needed is the weight of the rock minus the buoyant force.

Explanation:

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2 years ago

A small logo is embedded in a thick block of crown glass (n = 1.52), 4.70 cm beneath the top surface of the glass. The block is

harkovskaia [24]

The concept required to solve this problem is the optical relationship that exists between the apparent depth and actual or actual depth. This is mathematically expressed under the equations.

$d'w = d_w (\frac{n_{air}}{n_w})+d_g (\frac{n_{air}}{n_g})$

Where,

$d_g =$ Depth of glass

$n_w =$ Refraction index of water

$n_g =$ Refraction index of glass

$n_{air} =$ Refraction index of air

$d_w =$ Depth of water

I enclose a diagram for a better understanding of the problem, in this way we can determine that the apparent depth in the water of the logo would be subject to

$d'w = d_w (\frac{n_{air}}{n_w})+d_g (\frac{n_{air}}{n_g})$

$d'w = (1.7cm) (\frac{1}{1.33})+(4.2cm)(\frac{1}{1.52})$