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3 years ago

Please help

2 answers:

8 0

1.It's important that we understand how the climate is changing, so that we can prepare for the future. Studying the climate helps us predict how much rain the next winter might bring, or how far sea levels will rise due to warmer sea temperatures.

2.As the cold front passes, winds become gusty. There is a sudden drop in temperature, and also heavy rain, sometimes with hail, thunder, and lightning.

eimsori [14]3 years ago

7 0

Answer:

It's important that we understand how the climate is changing, so that we can prepare for the future. Studying the climate helps us predict how much rain the next winter might bring, or how far sea levels will rise due to warmer sea temperatures
As the cold front passes, winds become gusty. There is a sudden drop in temperature, and also heavy rain, sometimes with hail, thunder, and lightning.

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3 points

9966 [12]

Answer:

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3 years ago

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How many moons does Venus have? a. 3 b. 6 c. 0 d. 12

baherus [9]

The question is asking how many moons Venus, the planet, has and the answer is 0 -Venus doesn't have any moons. Another planet that doesn't have any moons is Mercury. Earth has one moon and Mars has two moons. Jupiter has 4 moons and the most impressive is Saturn, with its 53 confirmed moons (as claimed by Nasa)!

3 0

3 years ago

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Hi, I am having some issues with this physics problem, and it is vital for me to get this problem solved. Can anyone please give

mafiozo [28]

Answer:

U = 30 m/s

a = 3 m/s²

Explanation:

"A car accelerating uniformly from rest reaches a maximum speed of U in 10 s. It then moves with that speed for an additional 20 s. The distance covered by the car in the 30 s interval is 750 m. Find U and the acceleration of the car in the first 10 s."

During the first 10 s:

v₀ = 0 m/s

v = U m/s

t = 10 s

The distance covered in this time is the average velocity times time:

Δx = ½ (v + v₀) t

Δx = ½ (U + 0) (10)

Δx = 5U

The distance covered in the next 20 seconds is speed times time:

Δx = 20U

The total distance is 750 m:

5U + 20U = 750

25U = 750

U = 30 m/s

The acceleration during the first 10 seconds is the change in speed over change in time.

a = Δv / Δt

a = (30 m/s − 0 m/s) / 10 s

a = 3 m/s²

6 0

3 years ago

A polarized Light of intensity I0 is incident on an analyzer. What should the angle between the axis of polarization of the ligh

Svetradugi [14.3K]

Answer:

The the angle between the axis of polarization of the light and the transmission axis of the analyzer is 52⁰.

Explanation:

Given;

I₀ as incident light intensity

The intensity of a linearly polarized light passing through a polarizer is given by Malus' law:

I = I₀Cos²θ

where;

I is the intensity after passing through the analyzer

θ is the the angle between the axis of polarization of the light and the transmission axis of the analyzer.

If 38% of the total intensity is transmitted, then I = 38% of I₀ = 0.38I₀

0.38I₀ = I₀Cos²θ

0.38 = Cos²θ

Cosθ = √0.38

Cosθ = 0.6164

θ = Cos⁻¹ (0.6164)

θ = 51.95° = 52⁰

Therefore, the angle between the axis of polarization of the light and the transmission axis of the analyzer to allow 38% of the total intensity to be transmitted is 52⁰.

3 0

3 years ago

Calculate the frequency (v) in Hertz (Hz) of a wave that has a wavelength of 4.71 meters.

MissTica

Answer:

6.37 x 10⁷Hz

Explanation:

Given parameters:

Wavelength = 4.71m

Unknown:

Frequency = ?

Solution:

To solve this problem, we use the expression below:

V = F∧

V is the velocity = 3 x 10⁸m/s

F is the frequency

∧ is the wavelength

3 x 10⁸ = F x 4.71

F = 63694267.52Hz = 6.37 x 10⁷Hz

6 0

3 years ago