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3 years ago

A softball has a mass of 0.180 kg. What is its weight on earth?

Physics

2 answers:

slamgirl [31]3 years ago

6 0

Answer:

for a mass m = 10kg on Earth it`s weight is W = mg = 10 x 10 = 100N.

Explanation:

LenaWriter [7]3 years ago

4 0

Answer:

F= mg= 0.180 kg x 9.8 m/s^2= 1.80 N

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The central star of a planetary nebula emits ultraviolet light with wavelength 104nm. This light passes through a diffraction gr

Gala2k [10]

Answer: 31.33 degrees

Explanation:

The diffraction angles $\theta_{n}$ when we have a slit divided into $n$ parts are obtained by the following equation:

$dsin\theta_{n}=n\lambda$ (1)

Where:

$d$ is the width of the slit

$\lambda$ is the wavelength of the light

$n$ is an integer different from zero.

Now, the first-order diffraction angle is given when $n=1$ , hence equation (1) becomes:

$dsin\theta_{1}=\lambda$ (2)

Now we have to find the value of $\theta_{1}$ :

$sin\theta_{1}=\frac{\lambda}{d}$

$\theta_{1}=arcsin(\frac{\lambda}{d})$ (3)

We know:

$\lambda=104nm=104(10)^{-9}m$

In addition we are told the diffraction grating has 5000 slits per mm, this means:

$d=\frac{1mm}{5000}=\frac{1(10)^{-3}m}{5000}$

Substituting the known values in (3):

$\theta_{1}=arcsin(\frac{104(10)^{-9}m}{\frac{1(10)^{-3}m}{5000}})$

$\theta_{1}=arcsin(0.52)$

<u>Finally:</u>

$\theta_{1}=31.33\º$ >>>This is the first-order diffraction angle

4 0

3 years ago

What is the wavelength of a wave with a frequency of 200Hz while traveling at 125.5m/s

nikdorinn [45]

Answer:

0.6275 metres

Explanation:

v = fl

125.5 = 200 * wavelength

125.5 / 200 = wavelength = 0.6275m

4 0

3 years ago

A heat source could be considered a source of pollution Please select the best answer from the choices provided

jeyben [28]

The answer is true, is called Thermal pollotion:).

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2 years ago

What is the measure of a specific material’s ability to insulate charges from each other?

Elodia [21]

B.dielectric constant

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3 years ago

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In your own words explain how acceleration differs from uniform motion.

Sophie [7]

Explanation:

acceleration is the Changing of throut per unit time ....

and in uniform motion .....

in that the speed of an object is uniform means same

5 0

3 years ago