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MakcuM [25]
3 years ago
7

5. Psychologists begin their studies by framing ____.

Physics
1 answer:
Vikentia [17]3 years ago
4 0

Answer:

(research questions).

I hope its correct :)

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An astronaut is in equilibrium when he is positioned 140 km from the center of asteroid C and 581 km from the center of asteroid
serg [7]

Answer:B

Explanation:

Given

Distance of astronaut From asteroid x is r_x=140 km

Distance of astronaut From asteroid Y is r_y=581 km

Suppose M,M_x,M_y be the masses of Astronaut , asteroid X and Y

If the astronaut is in equilibrium then net gravitational force on it is zero

F_x=F_y

\frac{GMM_x}{r_x^2}=\frac{GMM_y}{r_y^2}

cancel out the common terms we get

\frac{M_x}{r_x^2}=\frac{M_y}{r_y^2}

\frac{M_x}{M_y}=(\frac{r_x}{r_y})^2

\frac{M_x}{M_y}=(\frac{140}{581})^2

\frac{M_x}{M_y}=0.05806\approx 0.0581

8 0
3 years ago
The law of universal gravitation states that any two objects in the universe that have mass without exception is called what
Flauer [41]
Is it multiple choice?
7 0
4 years ago
The production of heat by metabolic processes takes place throughout the volume of an animal, but loss of heat takes place only
Sever21 [200]

To solve this problem we will apply the concepts related to the change in length in proportion to the area and volume. We will define the states of the lengths in their final and initial state and later with the given relationship, we will extrapolate these measures to the area and volume

The initial measures,

\text{Initial Length} = L

\text{Initial surface Area} = 6L^2 (Surface of a Cube)

\text{Initial Volume} = L^3

The final measures

\text{Final Length} = L_f

\text{Final surface area} = 6L_f^2

\text{Final Volume} = L_f^3

Given,

\frac{(SA)_f}{(SA)_i} = 2

Now applying the same relation we have that

(\frac{L_f}{L_i})^2 = 2

\frac{L_f}{L_i} = \sqrt{2}

The relation with volume would be

\frac{(Volume)_f}{(Volume)_i} = (\frac{L_f}{L_i})^3

\frac{(Volume)_f}{(Volume)_i} = (\sqrt{2})^3

\frac{(Volume)_f}{(Volume)_i} = (2\sqrt{2})

\frac{(Volume)_f}{(Volume)_i} = 2.83

Volume of the cube change by a factor of 2.83

6 0
4 years ago
A wave has a period of 2 seconds and a wavelength of 4 meters. Calculate its frequency and speed. Note: Recall that the frequenc
Angelina_Jolie [31]

Answer:

frequency = 0.5 Hz and speed = 2 m/s

Explanation:

Given that,

The period of a wave, T = 2 s

Wavelength, \lambda=4\ m

If f be the frequency. So,

f = 1/T

f=\dfrac{1}{2}\\\\f=0.5\ Hz

Speed of a wave is given by :

v=f\lambda\\\\v=0.5\times 4\\\\v=2\ m/s

So, the frequency of the wave is 0.5 Hz and speed is 2 m/s.

4 0
4 years ago
Question 2 (1 point)
eduard

Answer: Blake may have a decreased chance of disease.

Explanation:

Research has shown that on average, a person who engages in more physical activity will live longer than a person who does not with one reason for this being that engaging in physical activity helps reduce the risk of diseases such as; heart disease, diabetes, and many forms of cancer.

Obesity (risk factor) and high blood pressure are also reduced by engaging in physical activity.

6 0
3 years ago
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