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ZanzabumX [31]
3 years ago
11

A bag is dropped onto the street from the roof of a 32 m high building. How long does it take for the bag to fall?

Physics
1 answer:
gizmo_the_mogwai [7]3 years ago
4 0

Answer:

Explanation:

h = ½at²

t = √(2h/a)

t = √(2(32)/9.8)

t = 2.5555062... 2.6 s

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A flat sheet if in the shape of a rectangle with sides of length 0.400 m and 0.600 m. The sheet is immersed in a uniform electri
Nataly [62]

Answer:

Φ= 17 N•m²•C⁻¹

Explanation:

Gauss's Law states that electric flux equals the surface integral of E•dA. But since we are given all the variables as finite values, we can simplify it into EAcosφ.

-E is given as 95N/C

-A is simply (.4)(.6)=.24m²

-φ is the angle between the E field/vector and the normal/perpendicular vector to the surface. We know that E makes a 20° to the surface here, so the angle φ=(90-20)°=70°. So the E vector makes a 70° angle to the normal of the surface. (I can see this portion as being the point of confusion, as it was for me at first.)

With all that we can say that the flux Φ is:

Φ=(95)(0.24)(cos[70°])=17.4384... N•m²•C⁻¹

I'll approximate to 2 sigfigs in my answer, since that'd be the technical answer.

*I believe V/m are also correct units for electric flux.

6 0
3 years ago
What kind of rock requires heat and preasure to form
allsm [11]

Answer:

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3 years ago
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