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gulaghasi [49]
3 years ago
6

As denizens of the surface of a spinning planet, we are always in uniform circular motion. Imagine you are in Nairobi (on the Ea

rth's equator) at noon on a Monday. Answer the following questions only considering the rotation of the earth and NOT the Earth's circular motion around the sun. The radius of the earth is 6371 km. A day is 24 hours.
Assuming that you are at at theta = 0 rad at noon on Monday and moving in the positive direction, what is your position theta in rad on Tuesday at 11:00 am?
Physics
1 answer:
Klio2033 [76]3 years ago
7 0

Answer:

6.02 radian

Explanation:

At 12 noon position is zero radian on Monday

at 12 midnight the position is π/2

at 11 am position on Tuesday is 2π/24 x 23 ( after 23 hours ) = 6..02 radian.

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When water changes into vapor this is called?
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Which device is designed to convert chemical energy into kinetic energy ?
irakobra [83]

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A.C. Generator

Explanation:

The device designed to convert chemical energy into kinetic energy is an A.C generator.

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7 0
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Review Interactive LearningWare 2.2 as an aid in solving this problem. A hot air balloon is ascending straight up at a constant
Ksivusya [100]

Answer:

y₁ = 37.2 m,      y₂ = 22,6 m

Explanation:

For this exercise we can use the kinematic equations

For the globe, with index 1

       y₁ = y₀ + v₁ t

For the shot with index 2

       y₂ = 0 + v₂ t - ½ g t²

 At the point where the position of the two bodies meet is the same

        y₁ = y₂

        y₀ + v₁ t = v₂ t - ½ g t²

        14 + 8.40t = 27.0 t - ½ 9.8 t²

        4.9 t² - 18.6 t + 14 = 0

        t² - 3,796 t + 2,857 = 0

Let's look for time by solving the second degree equation

         t = [3,796 ±√(3,796 2 - 4 2,857)] / 2

         t = [3,796 ± 1,727] / 2

         

         t₁ = 2.7615 s

         t₂ = 1.03 s

Now we can calculate the distance for each time

         y₁ = v₂ t₁ - ½ g t₁²

        y₁ = 27 2.7615 - ½ 9.8 2.7615²

        y₁ = 37.2 m

       

        y₂ = v₂ t₂ - ½ g t₂²

        y₂ = 27 1.03 - ½ 9.8 1.03²

        y₂ = 22,612 m

3 0
3 years ago
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