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3 years ago

What characteristic distinguishes a group from an aggregate?

Physics

2 answers:

Elis [28]3 years ago

8 0

Explanation:

Hello!

Let's solve this!

Next we will see the differences between group and aggregate:

A group of people are people who are together and who also have something in common or carry out an activity in common.

The main characteristic of a group is the interaction between its members.

In the case of the aggregate, they are people who are in the same place but do not share anything.

docker41 [41]3 years ago

3 0

Group is a collection of people that are in the same place and share some characteristics. examples are a group of students, a group of engineers and etc. while aggregate is a collection of people that are in the same place but do not share anything in common

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A) 1.2-kg ball is hanging from the end of a rope. The rope hangs at an angle 20° from the vertical when a 19 m/s horizontal wind

Marat540 [252]

Answer:

Part a)

$F_v = 4.28 N$

Part B)

$L = 1.02 m$

Part C)

$v = 1.25 m/s$

Explanation:

Part A)

As we know that ball is hanging from the top and its angle with the vertical is 20 degree

so we will have

$Tcos\theta = mg$

$T sin\theta = F_v$

$\frac{F_v}{mg} = tan\theta$

$F_v = mg tan\theta$

$F_v = 1.2\times 9.81 (tan20)$

$F_v = 4.28 N$

Part B)

Here we can use energy theorem to find the distance that it will move

$-\mu mg cos\theta L + mg sin\theta L = -\frac{1}{2}mv^2$

$(-(0.37)m(9.81) cos15 + m(9.81) sin15)L = - \frac{1}{2}m(1.4)^2$

$(-3.5 + 2.54)L = - 0.98$

$L = 1.02 m$

Part C)

At terminal speed condition we know that

$F_v = mg$

$bv^2 = mg$

$2.5 v^2 = 3.9$

$v = 1.25 m/s$

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2 years ago

The view that there are no universal moral principles or standards that hold true for all people is referred to as

pav-90 [236]

I think this fits the definition of ethical relativism. does that sound right?

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3 years ago

A weightlifter lifted 800 Newtons to a height of 2.5 meters. What is the power output if this was

stiv31 [10]

The power required is 1.6 kW.

Answer:

Explanation:

Power is defined as the amount of work done on any object for a given time interval. In other words, power is the amount of force required to move an object in a given period of time.

Power = Work done / time taken for that work done.

Here the force is given as 800 N and the displacement is given as 2.5 m, while the time required for the displacement is given as 1.22 seconds.

So the power will be ratio of the product of force acting on the weightlifter, displacement of the weight to the time taken for that displacement.

Power = (800×2.5)/1.22 =1639 W

So the power required is 1.6 kW.

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2 years ago

What is position?<br> the definition

inn [45]

Answer:

a place where someone or something is located or has been put.

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All traditional oriental medicine recognizes that an energy force called _____ flows through the body.

valentina_108 [34]

All traditional oriental medicine recognizes that an energy force called Qi flows through the body.

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Learn more about force here-

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1 year ago