Please I need help on this

Physics

1 answer:

guapka [62]3 years ago

6 0

Answer: Generally, prevailing winds blow east-west rather than north-south. This happens because Earth's rotation generates what is known as the Coriolis effect. The Coriolis effect makes wind systems twist counter-clockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere.

Explanation: here u go

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Unpolarized light is incident on a series of polarizing disks. We have three polarizers A, B and C have transmission axes that m

ikadub [295]

Answer:

Explanation:

Formula for intensity of light after transmission for unpolarised light is

I₀ / 2 , We shall take up 180 degree disk first .

For second transmission , the formula is

I = I₀ Cos²θ , θ is angle between axis of polarizer and axis of vibration.

If we take up 30 degree polariser

I = I₀ / 2 Cos²( 180 - 30 )

= .375 I₀

For third transmission

I_ final = .375 I₀ x cos( 90 - 30 )

= .1875 I₀

Final/I₀ = .1875

3 0

3 years ago

There is a vector A with magnitude 5 units pointing toward west, and a

Anit [1.1K]

Using the Pythagorean’s theorem to find the resultant, we find 5’2 +3’2=x’2
X=square root of 34=5.8unitd

4 0

3 years ago

a 2.0kg ball is resting at the top of a 20 m hill. if the ball rolls down the entire hill, how fast will it be going?

ratelena [41]

Speed of ball is 19.80 m/s .

<u>Explanation:</u>

We have , a 2.0 kg ball is resting at the top of a 20 m hill. if the ball rolls down the entire hill,We need to find how fast will it be going.Let's find out:

We know that,

Potential energy : This is the energy possessed by an object due to it's virtue of height and is given by $P.E = mgh$ , where m is mass , g is acceleration due to gravity & h is height !

Kinetic energy : This is the energy possessed by an object due to it's virtue of motion and is given by $K.E = \frac{1}{2}mv^2$ , where m is mass & v is the velocity of object !