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3 years ago

Please solce thiss quesstion

Physics

1 answer:

noname [10]3 years ago

4 0

Answer:

Can you give a clearer question

Explanation:

pls give me points i have questions

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A poundal is the force required to accelerate a mass of 1 lbm at a rate of 1 ft/s2 , and a slug is the mass of an object that wi

ahrayia [7]

Answer:

We are given that

The

Mass of person = 135lbm

Weight of person on earth will be

= mass x gravity constant

= 135lbm x 32.174 ft/s2

=4343.49 lbm-ft/s2 x 1 poundal-s2/lbm-ft

= 4343.49 poundal

Again we are given that

Mass of person = 135 lbm

But here remember Mass remains the same

Weight of person on moon will be

mass x gravity constant on moon

= 135 lbm x 32.174 ft/s2 x 1/6

= 723.9 lbm-ft/s2 x 1 poundal-s2/lbm-ft

= 723.9poundal

But we know that

1 ft slug / lbf-s2 = 32.174 ft lbm/ lbf-s2

1 slug = 32.174 lbm

So then the Mass of person

= 135lbm x 1slug/32.174 lbm

=4.2slugs

So finally

Weight = 405 poundals is same as

405 lbm-ft/s2

Mass = 35 slug x 32.174 lbm/slug = 1126.09 lbm

Acceleration rate = weight /mass

= (405 lbm-ft/s2) / (1126.09 lbm)

= 0.3597ft/s2 x 0.305m/ft

= 1.179 m/s²

4 0

4 years ago

A monoenergetic beam of electrons is incident on a single slit of width 0.500 nm. A diffraction pattern is formed on a screen 25

Dmitry_Shevchenko [17]

Answer:

KE=1.366×10⁻¹⁶J or

KE=854ev

Explanation:

single slit diffraction pattern occur where sinФ=mλ/a for m=±1,±2,±3,.......

Here λ is wavelength

The spacing between successive minima is then

Δy= $y_{m+1}-y_{m}$

Δy=λ(L/a)

as given Δy=2.10cm, L=25cm and a=0.500nm

so for λ

λ=Δy(a/L)

$=(2.10*10^{-2}m )(\frac{(0.500*10^{-9}m)}{25*10^{-2}m} )$

λ=4.2×10⁻¹¹m

The momentum of one of these electrons is then

p=h/λ

$p=\frac{6.63*10^{-34} }{4.2*10^{-11}}\\ p=1.578*10^{-23}kgm/s$

Assuming the electron is non-relativistic, its kinetic energy is

$KE=p^{2}/2m_{e}\\ KE=\frac{(1.578*10^{-23} )^{2} }{2(9.11*10^{-31})}\\ KE=1.366*10^{-16}J$

Convert joules into electronvolt we get

KE=854ev

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4 years ago

What is meant by sundial???

Fofino [41]

Answer:

Sundial is an instrument showing the time by the shadow of a pointer cast by the sun on to a plate marked with the hours of the day.

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2 years ago

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Which do you think changes the land more frozen water or flowing water?

Maksim231197 [3]

I believe flowing water changes the land because eventually frozen water has to melt to flowing water, right?

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4 years ago

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If equal force were applied to a basketball and a baseball which would travel further according to newtons 2nd law of motion

SashulF [63]

Most likely the baseball because it weighs less therefore with the same force it will go further due to the fact it weighs less it would be easier to apply force and the less it weighs there is also less force acting upon it.

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3 years ago

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Please solce thiss quesstion​

Please solce thiss quesstion