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3 years ago

In Young experiment, a light with a wavelength of 410 nm falls on two slits

Physics

1 answer:

Juliette [100K]3 years ago

8 0

Answer:

Explanation:

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An Olympic diver springs off of a high dive that is 3 m above the surface of the water. When she lands in the water she is trave

klemol [59]

Answer: $u=4.51 m/s\ at\ angle\ of\ \theta =59.34^{\circ}$

Explanation:

Given

height of building h=3 m

Landing velocity of diver $v=8.90 m/s$ at an angle of $75^{\circ}$

Let u be the initial velocity of diver at an angle of \theta with horizontal

Since there is no acceleration in horizontal direction therefore horizontal component of velocity will remain same

$u\cos \theta =8.9\cos (75)$ ---- -----1

Considering Vertical motion

$v^2-u^2=2as$

here $v=8.9\sin (75)$

$u=u\sin \theta$

$s=3 m$

$a=9.8 m/s^2$

$(8.9\sin (75))^2-(u\sin \theta )^2=2\times 9.8\times 3$

$u\sin \theta =\sqrt{(8.9\sin 75)^2-(2\cdot 9.8\cdot 3)}$

$u\sin \theta =3.886$ ----------------2

Divide 2 and 1 we get

$\tan \theta =\frac{3.886}{8.9\cos (75)}$

$\tan \theta =1.687$

$\theta =59.34^{\circ}$

Thus $u\cos (59.34)=8.9\cos (75)$

$u=4.51 m/s$

7 0

3 years ago

Which Moon position in the lunar cycle would provide the largest difference in ocean tides?

nlexa [21]

The greatest difference between high and low tide is around New Moon and Full Moon. During these Moon phases, the solar tide coincides with the lunar tide because the Sun and the Moon are aligned with Earth, and their gravitational forces combine to pull the ocean's water in the same direction.

Your answer is B Full moon

5 0

2 years ago

Is the visible light color spectrum a small segment of the electromagnetic spectrum?

VMariaS [17]

Answer:

Yes

Explanation:

The visible light color spectrum only makes up a small segment of the EM spectrum

7 0

3 years ago

An isotope has a half life of 2.5 minutes how many half -lives go by in 17.5 minutes

ale4655 [162]

Answer:

7 half-lives

Explanation:

7 0

3 years ago

What is happening to the average kinetic energy of the molecules in a pot of water when it is heated on a stove? Explain your an

Pepsi [2]

Answer:

Explanation:

The average kinetic energy of molecules in a pot increases when it is heated on a stove . The heat energy is spent to decrease the intermolecular attractive force . The result is increase in kinetic energy due to increase in the velocity of molecules

formula for kinetic energy of one mole of a monoatomic gas

= 3/2 RT

when temperature increases , kinetic energy increases .

6 0

3 years ago