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Andrews [41]
3 years ago
13

Complete this paragraph regarding dangers from the Sun.

Physics
2 answers:
Firlakuza [10]3 years ago
8 0

Answer:

[1]. b

[2].c

[3].a

[4].b

Explanation:

plato

i just took the test

Ganezh [65]3 years ago
4 0

Answer:

1: B. High-frequency

2:C. Satelites

3:A. Spacecraft

4:B. geomagnetic storms

i just took the test on PLATO

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melomori [17]
An ignious rock's color is mainly determined by its silica content
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3 years ago
A rectangular beam 10 cm wide, is subjected to a maximum shear force of 50000 N, the corresponding maximum shear stress being 3
nika2105 [10]

Answer:

Option B is the correct answer.

Explanation:

Shear stress is the ratio of shear force to area.

We have

       Shear stress = 3 N/mm² = 3 x 10⁶ N/m²

       Area = Area of rectangle = 10 x 10⁻² x d = 0.1d

       Shear force = 50000 N

Substituting

        \texttt{Shear stress}=\frac{\texttt{Shear force}}{\texttt{Area}}\\\\3\times 10^6=\frac{50000}{0.1d}\\\\d=0.1667m=16.67cm

Width of beam = 16.67 cm

Option B is the correct answer.

6 0
3 years ago
A uniform magnetic field B=5.210 T is perpendicular to the plane of the paper (into the page). The current-carrying wire of valu
ehidna [41]

Answer:5.21 N

Explanation:

Given

B=5.210 T

I=2 A

L=0.5 m

Given Wire is perpendicular to Magnetic field

\theta =90^{\circ}

F=IL\times B

F=BIL sin\theta

F=5.210\cdot 2\cdot 0.5 sin(90)

F=5.210 N

as  1 Tesla =1 N/A/m

4 0
3 years ago
Under which condition would time periods of daylight and darkness be equal everywhere on Earth all year? A. if Earth revolved ar
FromTheMoon [43]
The answer is b because that is the correct one
8 0
2 years ago
Read 2 more answers
An x-ray beam with wavelength 0.240 nmnm is directed at a crystal. As the angle of incidence increases, you observe the first st
siniylev [52]

Answer:

The spacing between the planes of the crystal is 0.295 nm

Explanation:

Given:

λ = wavelength = 0.24 nm

θ = angle of incidence = 66°

The spacing d between the planes of the crystal is equal:

d=\frac{n\lambda }{2cos\theta } =\frac{1*0.24}{2*cos66} =0.295nm

7 0
3 years ago
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