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olga nikolaevna [1]
3 years ago
6

Jennifer regularly instructs her students to avoid believing age-old theories about the differences between men and women. “As i

t turns out”, she says, “men and women are far more alike than we are different.” Jennifer is explaining the... hypothesis
Physics
2 answers:
Agata [3.3K]3 years ago
6 0
The best answer would be a "non-directional hypothesis"
katrin2010 [14]3 years ago
6 0
Jennifer is stating a “Non-directional hypothesis” which means that the researcher has stated a relationship between the two variables, but is unable to identify the specific relationship that has relation to the two.
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Consider a horizontal, uniform board of weight 125 N and length 4 m that is supported by vertical chains at each end. A person w
Norma-Jean [14]

Answer:

b. 375 N

Explanation:

System of forces in balance

ΣFy = 0 Equation (1)

Forces acting on the board

T₁: Tension in the  left chain ,  vertical and upward

T₂ = 250 N : Tension in the right chain ,  vertical and upward

W₁ = 125 N : Weight of the  board , vertical and downward

W₂ =  500 N : Weight of the  person , vertical and downward

Calculation of the T₁

We apply the Equation (1)

ΣFy = 0  

T₁+T₂-W₁-W₂ = 0

T₁ = -T₂+W₁+W₂

T₁ = -250 N+ 125 N+ 500 N

T₁ = 375 N

5 0
3 years ago
Knowing the constant g what will the gravitational force between two masses be if the gravitational force between them is 36n an
charle [14.2K]
The gravitational force between two masses is given by:
F=G \frac{m_1 m_2}{r^2}
where
G is the gravitational constant
m1 and m2 are the two masses
r is the separation between the two masses

We see that the force is proportional to the inverse of the square of the distance: F \sim  \frac{1}{r^2}
therefore, if the distance is tripled:
r'=3r
The force decreases by a factor 1/9:
F \sim  \frac{1}{(3r)^2}= \frac{1}{9}  \frac{1}{r^2}

Since the original force was 36 N, the new force will be
F' =  \frac{1}{9} (36 N)= 4 N
6 0
3 years ago
How much WATER needed to offset the force of jumping down from 20metre in vacuum environment,to keep me alive.
kenny6666 [7]

Answer:

it's quite difficult

Explanation:

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2 years ago
Need help ASAP!!!! here are the options: Amplitude, Compression, Rarefaction, and Wavelength
Strike441 [17]
Amplitude is the pair of vertical buttons, so to speak. Compressions are the bunched up vertical lines with the purple arrows pointing left and right. Rarefactions are purple arrows pointing down. Wavelength is crest to crest purple buttons. Associated LH and RH pointing arrows.
6 0
3 years ago
After 2 seconds the stone will have fallen a total of 19.6m how far will the stone have fallen after 5 seconds
Reil [10]
After 5 seconds the stone will have fallen 49 m
6 0
3 years ago
Read 2 more answers
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