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3 years ago

Using the free-body diagram, calculate the net force

Physics

2 answers:

LenKa [72]3 years ago

7 0

Answer:

YES

Explanation:

ECAD

yuradex [85]3 years ago

5 0

Answer:yes it is

Explanation:

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Convection of liquid in the metal core,
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3 years ago

In the compound below, what do the subscripts indicate?

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Answer:

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4 years ago

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Both car a and car b leave school at the same time, traveling in the same direction. car a travels at a constant speed of 75 km/

Zigmanuir [339]

1)
S₁ = V₁*t = 75*1,7 = 127,5 km

2)
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3 years ago

It is 4.0 km from your home to the physics lab. As part of your physical fitness program, you could run that distance at 10 km/h

Musya8 [376]

Answer:

Explanation:

To solve this problem we have to take into account that the energy consumed per second is the power. Hence, by multipling the power and the time spent to arrive to the lab we obtain the total energy consumed.

But first we have to calculate the time

$t_{1}=\frac{x}{v_{1}}=\frac{4km}{10\frac{km}{h}}=0.4h=0.4(3600s)=1440s\\t_{2}=\frac{x}{v_{2}}=\frac{4km}{3\frac{km}{h}}=1.3h=1.3(3600s)=4800s\\$

Now we use E=W*t for both times

$E_{1}=t_{1}W_{1}=(1440s)(700W)=1008000J\\E_{2}=t_{2}W_{2}=(4800s)(290W)=1392000J\\$

A. Hence, by running the energy consumed is lower.

E1=1008000J

E2=1392000J

C. Because the more intense exercise is made in a lower time in comparison with the less intense exercise, and higher the time, more energy is consumed.

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3 years ago

Think about routine tasks that astronauts might need to do inside and outside a

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3 years ago