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9966 [12]
3 years ago
7

A simple pendulum takes 2.20 s to make one compete swing. If we now triple the length, how long will it take for one complete sw

ing?
Physics
1 answer:
sergiy2304 [10]3 years ago
5 0

Answer:

Time taken for 1 swing = 3.81 second

Explanation:

Given:

Time taken for 1 swing = 2.20 Sec

Find:

Time taken for 1 swing , when triple the length(T2)

Computation:

Time taken for 1 swing = 2π[√l/g]

2.20 = 2π[√l/g].......Eq1

Time taken for 1 swing , when triple the length (3L)

Time taken for 1 swing = 2π[√3l/g].......Eq2

Squaring and dividing the eq(1) by (2)

4.84 / T2² = 1 / 3

T2 = 3.81 second

Time taken for 1 swing = 3.81 second

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The period of a pendulum is directly proportional to the mass of the bob. <br><br> true or false.
sattari [20]

Answer:

2 Answers. The mass of a pendulum's bob does not affect the period. Newton's second law can be used to explain this phenomenon. In F = m a, force is directly proportional to mass.

Explanation:

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3 years ago
Which change in an abiotic factor causes coral bleaching? a. increased salinity b. decreased salinity c. decreased turbidity d.
Sedbober [7]

The answer is <u>"d. increased temperature".</u>


At the point when corals are stressed by changes in conditions, for example, temperature, light, or supplements, they remove the symbiotic algae living in their tissues, making them turn totally white. Hotter water temperatures can result in coral bleaching. At the point when water is too warm, corals will oust the algae living in their tissues, making the coral turn totally white. This is known as coral bleaching.  

When a coral blanches, it isn't dead. Corals can endure a bleaching occasion, yet they are under more pressure and are liable to mortality.

7 0
3 years ago
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Current is constant at all points in a parallel circuit.<br><br> True<br> False
Sergio [31]
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Long story short, since there are two paths, the charge will split and depending on the resistance of each parallel stream a different amount of charge will go down each branch.  
5 0
3 years ago
A 0.86 kg rock is projected from the edge of the top of a building with an initial velocity of 8.65 m/s at an angle 46◦ above th
Georgia [21]

Answer:

Height of the building = 11.4 m

Explanation:

As we know that the stone is projected at an angle 46 degree with speed 8.65 m/s

so the two components of the speed is given as

v_x = 8.65 cos46

v_x = 6 m/s

vertical component of the speed is given as

v_y = 8.65 sin46

v_y = 6.22 m/s

now we know that the ball strike at horizontal distance of 13.7 m

so we will have

x = v_x t

13.7 = 6 t

t = 2.28 s

now we know that in vertical direction ball will move under uniform gravity so we can use kinematics

y = v_y t + \frac{1}{2}at^2

y = 6.22(2.28) - \frac{1}{2}(9.81)(2.28^2)

y = -11.4 m

Height of the building = 11.4 m

3 0
3 years ago
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Focal Lengths II If you were handed an unmarked convex lens (no optical track) and asked to estimate its focal length quickly, h
Lapatulllka [165]

Answer:

Explanation:

To estimate the focal length of a convex lens follow the following steps.

1. take a convex lens.

2. Stand near a window which is just opposite to a wall.

3. Look at a tree which is far away from the window by the convex lens.

4. focus the image of the tree on the wall which is opposite to the window.

5. You wll observe that by changing the position of convex lens a sharp and inverted and small image is seen on the wall.

5. Now measure the distance between the lens and the wall.

7. This distance is the rough focal length of the convex lens.

5 0
3 years ago
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