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3 years ago

What is the line running through earth from pole to pole

Physics

2 answers:

Juliette [100K]3 years ago

8 0

Imaginary lines that run north and south map from pole to pole. meridians express degrees of longitued

Brut [27]3 years ago

6 0

The Longitutes are <em>imagenary lines that run from the North pole to the South pole.</em>

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A harmonic wave on a string with a mass per unit length of 0.050 kg/m and a tension of 60 N has an amplitude of 5.0 cm. Each sec

Dennis_Churaev [7]

Answer:

Power of the string wave will be equal to 5.464 watt

Explanation:

We have given mass per unit length is 0.050 kg/m

Tension in the string T = 60 N

Amplitude of the wave A = 5 cm = 0.05 m

Frequency f = 8 Hz

So angular frequency $\omega =2\pi f=2\times 3.14\times 8=50.24rad/sec$

Velocity of the string wave is equal to $v=\sqrt{\frac{T}{\mu }}=\sqrt{\frac{60}{0.050}}=34.641m/sec$

Power of wave propagation is equal to $P=\frac{1}{2}\mu \omega ^2vA^2=\frac{1}{2}\times 0.050\times 50.24^2\times 34.641\times 0.05^2=5.464watt$

So power of the wave will be equal to 5.464 watt

6 0

3 years ago

Which type of radiation has the highest penetrating power?

Papessa [141]

<span>electromagnetic.........</span>

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3 years ago

The coefficient of kinetic friction between a suitcase and the floor is 0.272. You may want to review (Pages 196 - 203) . Part A

vazorg [7]

Answer:

Explanation:

The work required to push will be equal to work done by friction . Let d be the displacement required .

force of friction = mg x μ where m is mass of the suitcase , μ be the coefficient of friction

work done by force of friction

mg x μ x d = 660

80 x 9.8 x .272 x d = 660

d = 3 .1 m .

8 0

3 years ago

An apple with a mass of 0.95 kilograms hangs from a tree branch 3.0 meters above the ground. If it falls to the ground, what is

lubasha [3.4K]

Ke = pe
pe = mgh
= 0.95 x 9.8 x 3
= 27.93 J

6 0

3 years ago

Read 2 more answers

A block with a mass of 8.7 kg is dropped from rest from a height of 8.7 m, and remains at rest after hitting the ground. 1)If we

Harlamova29_29 [7]

To solve this problem we will apply the concepts related to gravitational potential energy.

This can be defined as the product between mass, gravity and body height.

Mathematically it can be expressed as

$\Delta P = mgh$

$\Delta P = (8.7)(9.8)(3)$

$\Delta P = 255.78J$

Therefore the change in the internal energy of the system is 255.78

7 0

3 years ago