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Llana [10]
3 years ago
7

Which of the following best describes pseudoscience?

Physics
2 answers:
levacccp [35]3 years ago
7 0

Answer:

A

Explanation:

MaRussiya [10]3 years ago
3 0

Answer: a is correct apx

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If velocity is positive, which woul
shusha [124]

Answer:

C. An inital volocity that is faster than the final volocity

Explanation:

.

5 0
3 years ago
An airplane has an effective wing surface area of 19.4 m2 that is generating the lift force. In level flight the air speed over
alexgriva [62]

Answer:

W =23807.68 N

Explanation:

given,

surface area of wing = 19.4 m²

speed over top wing = 67 m/s

speed under wing = 51 m/s

density of air =  1.3 kg/m³

weight of plane

From Bernoulli's principle

P_1 + \dfrac{1}{2}\rho v_1^2 = P_2 + \dfrac{1}{2}\rho_2^2

where 1 and 2 are two different locations at the same geo potential level  

so if we call 1 the lower surface and 2 the upper surface,

we find the pressure differential, P₁ -P₂

\Delta P =\dfrac{1}{2}\rho (v_2^2-v_1^2)

\Delta P =\dfrac{1}{2}\times 1.3 \times (67^2-51^2)

\Delta P =1227.2\ N/m^2

then the force acting on the plane is

F=P A

F=1227.2 x 19.4

F =23807.68 N

weight of the plane

W =23807.68 N

7 0
3 years ago
How much farther from the charge is the 2000 v equipotential surface than the 3000 v surface?
olganol [36]

Answer:

r1 -r2 = 3.75cm

Explanation:

Check the attached file for the solution

7 0
3 years ago
You are given two converging lenses to build a compound microscope. Lens A has focal length 0.50 cm and lens B has focal length
siniylev [52]

Answer:

The lens to be used for the objective is lens A

Explanation:

The objective of a compound microscope

The focal length of the lens used for the objective = 1/(magnification obtained)

The focal length of most modern is equal to the tube length

The range of sizes for the focal length of a microscope is between 2 mm and 40 mm

Therefore, the appropriate lens to be used for the objective of the compound is lens A that has a focal length of 0.50 cm = 5 mm

6 0
3 years ago
Al2(SO4)3<br> Name of this?
Kryger [21]

The answer to your question is Aluminum sulfate  also plz mark brainliest

5 0
3 years ago
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