When the sun and moon pull at right angles to the earth wat kinda tide can yu expect

A laser is shone through a double slit and a particular interference pattern is observed on a screen some distance away. If the

Grace [21]

If the separation between the openings in a laser is increased, then the distance between the interference fringes decreases

<h3>What is Interference fringe ?</h3>

Interference fringe refers to bands caused by different lights which can be found in phase or not each other.

Distances between laser fringes are short which is due to light wavelength.
The interference fringes can be estimated by knowing slit separation and wavelength.

In conclusion, if the separation between the openings in a laser is increased, then the distance between the interference fringe decreases

Learn more about Interference fringe here:

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5 0

2 years ago

The water skier has a mass of 73 kg. Find the magnitude of the

Papessa [141]

To solve this problem we will apply the linear motion kinematic equations, specifically the concept of acceleration as a function of speed and time, as well as Newton's second law.

PART A) Acceleration can be described as changing the speed in a period of time therefore,

$a = \frac{V}{t}\\a = \frac{11}{8}\\a = 1.375m/s^2$

Force is the proportional change between mass and acceleration therefore

$F = (73)(1.375)$

$F= 100.375N$

PART B) We will apply the same concept given but now we will change the time to 21s therefore:

$a = \frac{V}{t}\\a = \frac{11}{21}\\a = 0.5238$

Now the force

$F = (73)(0.5238)$

$F = 38.23N$

6 0

4 years ago

When water vapor is cooled it three forms into water droplets why does this represent a conservation in mass

AVprozaik [17]

In the conservation of mass, mass is never created or destroyed in chemical reactions in the same way water is not created or destroyed it is only transferred from one form to another and its mass is always conserved.

8 0

3 years ago

1. A particle is projected vertically upwards with a velocity of 30 ms from a point 0. Find (a) the maximum height reached(b) th

Bogdan [553]

Assuming the particle is in free fall once it is shot up, its vertical velocity v at time t is

v = 30 m/s - g t

where g = 9.8 m/s² is the magnitude of the acceleration due to gravity, and its height y is given by

y = (30 m/s) t - 1/2 g t ²

(a) At its maximum height, the particle has 0 velocity, which occurs for

0 = 30 m/s - g t

t = (30 m/s) / g ≈ 3.06 s

at which point the particle's maximum height would be

y = (30 m/s) (3.06 s) - 1/2 g (3.06 s)² ≈ 45.9184 m ≈ 46 m

(b) It takes twice the time found in part (a) to return to 0 height, t ≈ 6.1 s.

(c) The particle falls 35 m below its starting point when

-35 m = (30 m/s) t - 1/2 g t ²

Solve for t to get a time of about t ≈ 7.1 s

7 0

3 years ago

A farmer plans to build a rectangular garden in back of his house so that he only needs fencing on 3 sides of the garden. if he

kogti [31]

Answer:

90 feet

Explanation:

The farmer wants the second side of the garden to be 30 feet longer than the back of his house.

If the back of his house=x ft

The second side=(x+30) ft

Note that the farmer does not fence the side on the back of the house.

Area of the garden = 400 square feet

Area of a Rectangle= Length X Width

400 = x(x+30)

$x^2+30x-400=0\\x^2+40x-10x-400=0\\x(x+40)-10(x+40)=0\\(x+40)(x-10)=0\\$

x+40=0 or x-10=0

x=-40 or x=10

Since length cannot be negative, x=10 ft

The Length of the Fencing the farmer will buy will be the perimeter of the three sides.

Perimeter of the three sides = x+(x+30)+(x+30)

=3x+60

=3(10)+60=90 ft

The farmer needs to buy a fencing of length 90 feet.

4 0

4 years ago