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4 years ago

11

What happens to white light when it passes through a prism

1 answer:

love history [14]4 years ago

6 0

Answer:

Refraction splits the light into its component wavelengths, and you see a rainbow.

You might be interested in

Why do scientists believe that light is made of waves?

skelet666 [1.2K]

Answer:

Scientists believe that light is made of waves because experiments have shown that, based on Huygens's principle, waves have the ability to bend and change direction.

Explanation:

4 0

3 years ago

A speeding car traveling at 24.8 m/s passes a police car that is at rest. The police car begins its pursuit at the instant the s

marusya05 [52]

Answer:

the acceleration required is 1.37m/s^2

Explanation:

The car is having a constant velocity movement, so if we calculate the time to reach 897m, we can use it to find the acceleration the policeman need to apply to reach the car.

$x=v*t\\t=\frac{x}{v}\\t=\frac{897m}{24.8m/s}\\t=36.17s$

the policeman is traveling with a constant acceleration starting from rest so:

$x=\frac{1}{2}*a*t^2\\\\a=\frac{2*x}{t^2}\\\\a=1.37 m/s2$

7 0

3 years ago

An airplane is traveling 25° west of north at 300 m/s when a wind with velocity 100 m/s directed 35° east of north begins to blo

hodyreva [135]

Answer:

The resultant velocity is 360.5 m/s and direction 79° north of east.

Explanation:

Given that,

Velocity of airplane = 300 m/s

Velocity of wind = 100 m/s

Angle θ₁ = 25°

Angle θ₂ =35°

The horizontal velocity component

Using formula of velocity

$v_{x}=v_{1}\cos\theta-v_{2}\cos\theta$

Put the value into the formula

$v_{x}=300\cos65-100\cos55$

$v_{x}=69.42\ m/s$

The vertical velocity component

Using formula of velocity

$v_{y}=v_{1}\sin\theta+v_{2}\sin\theta$

Put the value into the formula

$v_{y}=300\sin65+100\sin55$

$v_{y}=353.8\ m/s$

We need to calculate the resultant velocity

Using formula of resultant velocity

$v=\sqrt{v_{x}^2+v_{y}^2}$

Put the value into the formula

$v=\sqrt{69.42^2+353.8^2}$

$v=360.5\ m/s$

We need to calculate the direction of the resultant velocity

Using formula of direction

$\tan\theta=\dfrac{v_{y}}{v_{x}}$

Put the value into the formula

$\theta=\tan^{-1}(\dfrac{353.8}{69.42})$

$\theta=79^{\circ}$

Hence, The resultant velocity is 360.5 m/s and direction 79° north of east.

3 0

3 years ago

2. List two units for measuring mass and two units for measuring force.

Ksenya-84 [330]

Answer:

Gram (g) and Kilogram (kg) are used to measure mass.

Metre (m) and Kilogram (kg) are used to measure force.

8 0

3 years ago

KengaRu [80]

Explanation:

Given that,

Vector a = 4i+3j

Vector b = -13i+7j

We need to find the magnitude and direction of (a+b). So,

(a+b) = (4i+3j) + (-13i+7j)

= (4i-13i)+(3j+7j)

= -9i+10j

Magnitude of (a+b).

$|a+b|=\sqrt{(-9)^2+10^2} \\\\=13.45$

Direction of (a+b),

$\tan\theta=\dfrac{10}{-9}\\\\\theta=\tan^{-1}(\dfrac{-10}{9})\\\\\theta=-48.01^{\circ}$

Hence, this is the required solution.

5 0

3 years ago