3 years ago

Can an object form two or more shadows at the same how

Physics

2 answers:

IgorC [24]3 years ago

8 0

Yeah when there are many light sources from different directions

Vlad [161]3 years ago

7 0

Answer:

Yes, it can but there must be two or more than two light source at different angle.

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The earth exerts a gravitational force on the moon. the moon exerts a gravitational force on the earth. how do the magnitudes of

Sonbull [250]

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3 years ago

If you hike up Eagle Mountain to its peak (highest elevation), what side would be easiest to climb up: East or West? How do you

mihalych1998 [28]

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4 years ago

Describe a line that indicates moving backward on a graph

Vladimir [108]

Answer:

time speed accelaration negatives backwards

Explanation:

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3 years ago

Light rays in a material with index of refrection 1.29 1.29 can undergo total internal reflection when they strike the interface

deff fn [24]

Answer:

The second material's index of refraction is 1.17.

Explanation:

Given that,

Refractive index of the material, n = 1.29

Critical angle is 65.9 degrees.

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$n_1\sin \theta_c=n_2\sin (90)\\\\n_2=n_1\sin \theta_c\\\\n_2=1.29\times \sin (65.9)\\\\n_2=1.17$

So, the second material's index of refraction is 1.17.

7 0

3 years ago

If a spacecraft in earth orbit is pushed by a thruster what will happen?

grin007 [14]

For the orbital speed of a spacecraft we know that

$v = \sqrt{\frac{GM}{r}}$

here

M = mass of the planet around which satellite is revolving

r = orbital radius

Now when thruster is used by the spacecraft its speed will change due to which orbital speed will change.

Since here while changing the speed mass of the planet will be same

we can say the speed of the spacecraft will changed by thruster due to which its orbital radius will change

so the correct answer must be

<em>b. the spacecraft will change motion and will maintain this new orbit until the thruster is fired again.</em>

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3 years ago