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Serggg [28]
3 years ago
15

If the thermometer reads 20° Celsius, what's the temperature in Fahrenheit? A. 52° B. 68° C. 72° D. 36°

Physics
1 answer:
Eduardwww [97]3 years ago
6 0
The answer is B. 68°
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A pendulum of length 130.0 cm has a period of oscillation, T₁. The bob is pulled and released to move in a horizontal circle of
Anastasy [175]

The ratio of T1 : T2 is 1.6

<h3>What is Simple Harmonic Motion ?</h3>

SHM is the periodic motion of a particle along a line such that the acceleration of the body is directed toward a fixed point and proportional to its displacement.

Given that a pendulum of length 130.0 cm has a period of oscillation, T₁.

Then, The period T₁ = 2\pi\sqrt{\frac{l}{g} }

T₁ = 2 x 3.142 \sqrt{\frac{1.3}{10} }

T₁ = 6.284 x 0.36

T₁ = 2.266

But if T = 0

then, mv^{2} /r = mg

the m will cancel out

Then v = \sqrt{rg}

where r = 50/100 = 0.5m

Substitute into the formula

v = \sqrt{ 0.5 * 10}

v = 2.24 m/s

Also, given that the bob is pulled and released to move in a horizontal circle of radius 50.0 cm and the period of rotation is T2,

w = 2\pif

w = 2\pi/T

but v = wr

w = v/r

Therefore,

v/r = 2\pi/T

Substitute all the parameters into the formula

2.24/0.5 = (2 x 3.1423) /T

T = 6.284/4.472

T = 1.405 = T_{2}

The ratio T₁: T2 will be 2.266/1.405

The ratio is 1.6

Learn more about Simple Harmonic Motion here: brainly.com/question/24646514

#SPJ1

4 0
2 years ago
Question 5 of 34
xz_007 [3.2K]

Answer: D. One-dimensional motion

Explanation:

4 0
3 years ago
Read 2 more answers
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