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3 years ago

Which Chinese man was leader of the National People's Party, called the Guomindang, in 1925?

Physics

2 answers:

marta [7]3 years ago

7 0

Answer:

its B. Chiang Kai-Shek

Len [333]3 years ago

5 0

<span>C. Mao Zedong
Hope this helps!~</span>

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What would happen to the moon if the earth stopped exerting the force of gravity onto it?

nataly862011 [7]

It would drift away from the Earth and enter its own orbit around the sun. It would become the 9th planet, in an orbit very close to Earth's orbit. (Our moon is larger than Pluto, and almost as large as Mercury.)

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3 years ago

The displacement y is expressed as a function of x and t in terms of the wave numberk and the angular frequency. Write the equiv

Phoenix [80]

Explanation:

The displacement equation is given by :

(a) $y=A\ sin(\omega t\pm kx)$

Since, $\omega=2\pi f$

$\lambda=\dfrac{2\pi}{k}$

$y=A\ sin(2\pi f t\pm kx)$

$y=A\ sin(\dfrac{2\pi vt}{2\pi /k}\pm kx)$

$y=A\ sin(kvt+kx)$

$y=A\ sink(vt+x)$

The above equation is in terms of k and v.

(b) $y=A\ sin(\omega t\pm kx)$

$y=A\ sin(2\pi \dfrac{v}{\lambda}t\pm\dfrac{2\pi}{\lambda}x)$

$y=Asin\dfrac{2\pi}{\lambda}(vt\pm x)$

$y=A\ sin(2\pi f t\pm \dfrac{2\pi}{\lambda} x)$

$y=A\ sin\ 2\pi (ft\pm \dfrac{x}{\lambda})$

(d) $y=A\ sin(\omega t\pm kx)$

$y=A\ sin(2\pi ft+\dfrac{2\pi}{\lambda}x)$

$y=A\ sin(2\pi ft+\dfrac{2\pi}{v/f}x)$

$y=A\ sin\ 2\pi f(t+\dfrac{x}{v})$

Where

k is the propagation constant

v is the speed of wave

f is the frequency of a wave

$\lambda$ is the wavelength

Hence, this is the required solution.

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3 years ago

Whether a person needs a sports drink during exercise depends on

kolbaska11 [484]

A because it depends if the athlete is doing an intense workout he/she would need a sports drink to hydrate them selves

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2 years ago

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4. A weightlifter raises a mass mat a constant speed to a height h in time t. Which of the following

marishachu [46]

Answer:

Explanation

The work done by the lifter is equal to its potential energy since he is covering a height and under the influence of gravity.

potential energy = mass * acceleration due to gravity * height

m is the mass

g is the acceleration due to gravity

h is the height

Hence the required workdone = PE = mgh

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3 years ago

What do we call the force used when someone is pushing a lawnmower across the yard?

raketka [301]

C.) applied force is the answer

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2 years ago

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