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Tems11 [23]
2 years ago
7

30 POINTS PLZ HELP!!!

Physics
2 answers:
pishuonlain [190]2 years ago
8 0

Answer: Option (A) is the correct answer.

Explanation:

Since Robert has a history of depression this means that he is mostly worried about his image in his family and friends because everyone wants to look good in everybody's eyes.

Similarly, Robert also wants to be treated fairly well by everyone around him as he wants that everybody consider him normal.

Thus, Robert’s apprehension to get help is an example of a fear of being stigmatized.

jok3333 [9.3K]2 years ago
5 0

Answer:

A

Explanation:

In society, there is a terrible stigma attached to mental illnesses as a general topic. Usually the mentality is "it's all in your head", which is not true.

Many people who think they have depression or anxiety do not want to say anything, because of the fear of judgement. The general population believes that there "is no such thing" as depression because there are no visible signs that can be viewed as a sickness.

In this case Robert would not want to seek help, because he would not want to be viewed as someone who is "looking for attention".

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Answer:

a) The maximum possible acceleration the truck can give the SUV is 7.5 meters per second squared

b) The force of the SUV's bumper on the truck's bumper is 18000 newtons

Explanation:

a) By Newton's second law we can find the relation between force and acceleration of the SUV:

F=ma

With F the maximum force the truck applies to the SUV, m the mass of the SUV and a the acceleration of the SUV; solving for a:

a=\frac{F}{m}=\frac{18000}{2400}\approx7.5\,\frac{m}{s^{2}}

b) Because at this acceleration the truck's bumper makes a force of 18000 N on the SUV’s bumper by Third Newton’s law the force of the SUV’s bumper on the truck’s bumper is 18000 N too because they are action-reaction force pairs.

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2 years ago
A composite wall separates combustion gases at 2400°C from a liquid coolant at 100°C, with gas and liquid-side convection coeffi
evablogger [386]

Answer:

\text{heat loss} = 24864.05 \  W/m^2

Explanation:

If

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  • t_1 and t_2 are thicknesses of gas layer and steel slab in meters,
  • h_1, h_2 are convection coefficients gas and liquid in W/m^2 \cdot K,
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then: part(a):

\text{heat loss } =  \frac{T_1 - T_2} { \frac{1}{h_1} + \frac{t_1}{t_2} + R_c + \frac{t_2}{k_2} + \frac{1}{h_2}}

using known values:

\text {heat loss} = 2486.05 W/m^2

part(b): Using the rate equation :

\text {heat loss} = h_1 (T_1 - T_{s1})

the surface temperature T_{s1} = 1678.438 \ K

and T_{c1} = T_{s1} - \frac {t_1 (\text{heat loss})}{k_1} = 1664.560 \ K

Similarly

T_{c2} = T_{c1} - R_c (\text{heat loss}) = 421.357 \ K

T_{s2} = T_{c2} - \frac {t_2 (\text{heat loss})}{ k_2} = 397.864 \ K

The temperature distribution is shown in the attached image

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2 years ago
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Answer:  75,242.9 m/s

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velocity of lion (VL) = 777,377.7 m/s

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velocity of Lion and Gazelle (V) = ?

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The second diagram shows the motion of the Lion and Gazelle with their directions rearranged to form a right angle triangle.

from the triangle formed we can get the velocity of the Lion and Gazelle immediately after collision using their momentum and Phytaghoras theorem

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momentum of the Lion and Gazelle = 200,900.7  x V

now applying Phytaghoras theorem we have

13,089,840,463.7 + 2,026,506,942.46 =  200,900.7 x V

15,116,347,406.16 = 200,900.7 x V

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