3 years ago

State the relationship between the mass of trolley and acceleration of the trolley?

Physics

1 answer:

kogti [31]3 years ago

5 0

Answer:  The complementary relationship indicated by the Newton's second law...

For a given applied force the acceleration of the trolley is inversely proportional to it's mass.

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Car A rear ends Car B, which has twice the mass of A, on an icy road at a speed low enough so that the collision is essentially

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Answer:

D. The momentum of Car B is three times as great in magnitude as that of car A.

Explanation:

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2 years ago

A wooden block meauring 40cm x 10cm x 5cm has a mass 850gm . find the density of wood?

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Explanation:

Density = Mass / Volume = 850 / 40*10*5 = 0.425 g /cm^3

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how do u calculate the kinetic energy of a ball of mass 0.25kg being kicked vertically upwards with a speed of 5m/s

vfiekz [6]

Answer:

3.125J

Explanation:

K.E.= 1/2(mass)(velocity)^2

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2 years ago

Red light of wavelength 633 nm from a helium-neon laser passes through a slit 0.400mm wide. The diffraction pattern is observed

kogti [31]

Answer:

a) $y_{first}=5.3mm$

b) $y_{second}=10.6-5.3 =5.3 mm$

Explanation:

The width of the central bright in this diffraction pattern is given by:

$y=\frac{m\lambda D}{a}$ when m is a natural number.

here:

m is 1 (to find the central bright fringe)
D is the distance from the slit to the screen
a is the slit wide
λ is the wavelength

So we have:

$y_{first}=\frac{633*10^{9}*3.35}{0.0004}$

$y_{first}=5.3mm$

Now, if we do m=2 we can find the distance to the second minima.

$y_{2}=\frac{2*633*10^{9}*3.35}{0.0004}$

$y_{2}=10.6 mm$

Now we need to subtract these distance, to get the width of the first bright fringe :

$y_{second}=10.6-5.3 =5.3 mm$

I hope it heps you!

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2 years ago