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3 years ago

What is the coefficent for hydrochloric acid

Physics

1 answer:

Dafna1 [17]3 years ago

6 0

Answer:

HCI

Explanation:

I dont know what you mean by coefficient but that's the thing you would see in the periodic table

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A 5-kg object slides down a frictionless surface inclined at an angle of 30º from the horizontal. The total distance moved by th

erma4kov [3.2K]

Answer:

Workdone =0

Explanation:

The body is inclined at θ=30°, s=10m, m=5kg

Workdone by the object = FsCosθ

but the surface is a friction-less surface, this means coefficient of friction =0

F=μR

F=0*R

F=0

W=FScosθ

W=0*SCosθ

W=0

7 0

4 years ago

What are the formulas for Work, KE, GPE and Power?

Katyanochek1 [597]

Answer:

work=f×d

GPE =m×g×h

$kinetic energy = \frac{1}{2} mv {}^{2} \\ power = \frac{w}{t}$

6 0

3 years ago

The distance between the ruled lines on a diffraction grating is 1900 nm. The grating is illuminated at normal incidence with a

SashulF [63]

Answer:

3.28 degree

Explanation:

We are given that

Distance between the ruled lines on a diffraction grating, d=1900nm= $1900\times 10^{-9}m$

Where $1nm=10^{-9} m$

$\lambda_2=400nm=400\times10^{-9}m$

$\lambda_1=700nm=700\times 10^{-9}m$

We have to find the angular width of the gap between the first order spectrum and the second order spectrum.

We know that

$\theta=sin^{-1}(\frac{m\lambda}{d})$

Using the formula

m=1

$\theta_1=sin^{-1}(\frac{1\times700\times 10^{-9}}{1900\times 10^{-9}})$

$\theta=21.62^{\circ}$

Now, m=2

$\theta_2=sin^{-1}(\frac{2\times400\times 10^{-9}}{1900\times 10^{-9}})$

$\theta_2=24.90^{\circ}$

$\Delta \theta=\theta_2-\theta_1$

$\Delta \theta=24.90-21.62$

$\Delta \theta=3.28^{\circ}$

Hence, the angular width of the gap between the first order spectrum and the second order spectrum=3.28 degree

6 0

3 years ago

Which statement is true for both types of transistors?

lara31 [8.8K]

For both NPN and PNP this is true:

The base is between the collector and the emitter.

8 0

3 years ago

Read 2 more answers

Which has the most momentum? (look at picture please)!!

aliina [53]

Answer: the top one

Explanation: hope this helps

6 0

3 years ago