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leonid [27]
3 years ago
11

A sheet of gold foil has a volume of 0.750 cm3. If the foil measures 50.0cm by 10.0cm, what is the thickness of the foil?

Physics
1 answer:
vlada-n [284]3 years ago
6 0

To calculate the thickness of foil, we use formula of volume as

V= l w t

Here, l is the length of the foil, w is the width of the foil and t is the thickness of the foil.

Given,  V = 0.750 \ cm^3, l = 50 cm and w = 10 \ cm.

Substituting theses values in above equation, we get

0.750 \ cm^3 = 50 cm \times 10 \ cm \times t \\\\ t =  0.0015 cm

Thus, the thickness of the foil is 0.0015 cm.

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Headlands and bays are created where there are bands of hard and soft rock which meet the coastline at right angles. Softer rock is eroded more quickly and erodes backwards to form bays (which may have beaches). The harder rocks are more resistant to erosion and jut out into the sea to form exposed headlands

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As a rule of thumb, the position of metal ions on the activity series determines their reactivity.

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Generally, activity increases as we go up the group.

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When frequency is decreased what happens to the amplitude?
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A rocket ship has several engines and thrusters. While the Solid Rocket Booster (SRB) and main engines only work together during
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A rocket ship is accelerated by the SRB and the main engines for 2.0 minutes and the main engines for 8.5 minutes after the launch. The acceleration of the ship during the first 2.0 minutes is 11 m/s² (D).

A rocket ship has several engines and thrusters. We can divide its initial movement into 2 parts:

  • From t = 0 min to t = 2.0 min, the SRB and the main engines act together and the speed goes from 0 m/s (rest) to 1341 m/s.
  • From t = 2.0 min to t = 8.5 min, the main engines alone accelerate the ship form 1341 m/s to 7600 m/s.

We want to know the acceleration in the first part (first 2.0 minutes). We need to consider that:

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The acceleration of the ship during the first 2.0 minutes is:

a = \frac{\Delta v }{t} ) \frac{(1341m/s-0m/s)}{2.0min} \times \frac{1min}{60s}  = 11 m/s^{2}

A rocket ship is accelerated by the SRB and the main engines for 2.0 minutes and the main engines for 8.5 minutes after the launch. The acceleration of the ship during the first 2.0 minutes is 11 m/s² (D).

Learn more: brainly.com/question/16274121

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2 years ago
An object of mass 20 kg is raised vertically through a distance of 8 m above ground level. If g = 10 m/s2, what is the gravitati
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Explanation:

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