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Lady bird [3.3K]

3 years ago

10

PLEASE ANSWER THIS ASAP I WILL MARK YOU THE BRAINLIEST The actual subject is Science but they dont have that as a option in pick

a subject

1 answer:

fenix001 [56]3 years ago

7 0

Correct me if I’m wrong but I think it’s A

Explanation:
Runner A has already reached about 50m in around 5s.

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Late one night on a highway, a car speeds by you and fadesinto the distance. Under these conditions the pupils of your eyes(aver

Andrews [41]

Answer:

10432.19076 m

Explanation:

$\lambda$ = Wavelength = 660 nm

d = Diameter of pupils = 6 mm

s = Distance between lights = 1.4 m

L = Distance from observer

From Rayleigh's criteria we have

$1.22\lambda=dsin\theta$

As $\theta$ is small $sin\theta=\dfrac{s}{L}$

So, the equation becomes

$1.22\lambda=d\dfrac{s}{L}\\\Rightarrow L=\dfrac{ds}{1.22\lambda}\\\Rightarrow L=\dfrac{6\times 10^{-3}\times 1.4}{1.22\times 660\times 10^{-9}}\\\Rightarrow L=10432.19076\ m$

The car is 10432.19076 m from me

6 0

4 years ago

What can cause a big city to be warmer than the surrounding countryside?

hammer [34]

There are many people in the city and so much traffic that it pollutes the air and makes it warmer where the country dosent have much traffic so there for its cooler

4 0

3 years ago

Read 2 more answers

What parameters affects the inductance of a coil

Kazeer [188]

Answer:

Number of Wire Turns in the Coil.

Explanation:

The greater the number of turns of wire in the coil, the greater the inductance. Fewer turns of wire in the coil results in lesser inductance. More coils of wires indicate a greater amount of magnetic field force for a given amount of coil current.

4 0

2 years ago

An electric power station is producing 210 kW of power that is to be sent to a small town located 34.0 km away. Each of the two

gladu [14]

You probably know this equation giving the power dissipated:

P = IV

P = power, I = current, V = applied voltage

We can substitute I = V/R from Ohm's law:

P = V²/R

Given values:

V = 30.0×10³V, R = 0.40Ω/km×34.0km = 13.6Ω

Plug in and solve for P:

P = (30.0×10³)²/13.6

P = 6.62×10⁷W

5 0

3 years ago

Can you hit the monkey at a slow speed with gravity on?

ExtremeBDS [4]

Answer:

no

Explanation:

we can't hit a monkey at a slow speed with gravity on

5 0

3 years ago