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V125BC [204]
3 years ago
11

justin and his friends are on the football team. they consider skateboarders at their school to be an out-group. what does this

mean?
Physics
2 answers:
laila [671]3 years ago
7 0
A. They have negative feelings about the skateboarders. -apex
Diano4ka-milaya [45]3 years ago
7 0

Explanation:

Justine and his friends feel superior of themselves to the skateboarders team as they have a negative feeling about the skateboarders team. They always isolate and out group the skateboarders team in the school. They feel that football is the only superior sport and all has to play and support football and not skateboarding as a sport.

Thus they have a negative feeling towards the skateboarders team.

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in a 4 kilometer race, a runner completes the first kilometer in 5.9 minutes, the second kilometer in 6.2 minutes, the third kil
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To find the average of data collected, add all of the measurements: 5.9+6.2+6.3+6= 12.2

Then, divide the total amount by the number of data collected which is 4: 12.2/4= 3.05

The average speed of the runner of the race is approximately 3.05 km/min

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4. How much milk at 5° C needs to be added to 250 g of coffee at 90° C to make the coffee drinkable at 60° C?
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3 years ago
A wire with a resistance of 20 Ω is connected to a 12-V battery. What is the current flowing through the wire?
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Current is 0.6 Amps i think
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Which of the following describes the treatment in an investigation?
insens350 [35]

Answer:

Live training (whether through videoconference or a live course on a learning management system) or an eLearning course with knowledge checks is suggested so that learners can receive immediate feedback. Inclusion of a post-test – as well as an electronic guide describing jurisdiction-specific protocols – is strongly recommended.

Explanation:

5 0
3 years ago
Three cables AB, AC, and AD are supporting a 70-m tall tower. The magnitude of force in each cable is 2 kN. Find the total force
Mrac [35]

Explanation:

The coordinates of points are:

A (0, 70, 0), B (40, 0, 0), C (40, 0, 40) D (60, 0, 60).

The position vectors for corresponding cables are:

r_{AD} =(-60-0)i+(0-70)j+(-60-0)k\\r_{AD} =-60i-70j-60k\\r_{AC} =(-40-0)i+(0-70)j+(40-0)k\\r_{AC} =-40i-70j+40k

r_{AB} =(40-0)i+(0-70)j+(0-0)k\\r_{AB} =40i-70j+0k

the unit vectors for these positions are:

u_{AD} =r_{AD} /[r_{AD} ]=(-60/110)i-(70/110)j-(60/110)k\\=-0.5455i-0.6364j-0.5455k

u_{AC} =r_{AC} /[r_{AC} ]=-(40/90)i-(70/90)j+(40/90)k\\=-0.444i-0.778j+0.444k

u_{AB} =r_{AB}/[ r_{AB} ]=(40/80.6)j-(70/80.6)j+0k\\=0.4963i-0.8685j+0k

The factors are:

F_{AB} =[F_{AB} ]u_{AB} =0.9926i-1.737j+0k\\\\F_{AC}= [F_{AC]} u_{AC} =-0.8888i-1.5556j+0.8888k

F_{AD} =[F_{AD}] u_{AD} =-1.0910i-1.2728j-1.0910k

so The resultant force exerted on tower by cables are:

F_{R} =F_{AB}+ F_{AC}+ F_{AD} \\=-0.9875i-4.5648j-0.2020k\\magnitude=[F_{R} ]=4.674kN

6 0
3 years ago
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