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4 years ago

5

How to classify an inner planet vs. outer planet

1 answer:

zvonat [6]4 years ago

7 0

Outer planets are farther away and made up of gases. Inner planets closer. It's pretty much self explanatory. Hope this helps.

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a car travels at 50 m/s for first 20 seconds , 30 m/s for next 30 seconds and finally 20 m/s for next 10 seconds . find its aver

kaheart [24]

The average speed traveled by car is $35m/s$ .

$1^{st}$ case

Speed $=50m/s\\$

Time $=20s$

Distance $=$ $speed*time= 50*20=1000m$

$2^{nd}$ case

Speed $=30m/s$
Time $=30s$

Distance $=30*30=900m$

$3^{rd}$ case

Speed $=20m/s$
Time $=10s$

Distance $=20*10=200m$

Now, The total distance $=(1000+900+200)m=2100m$

Total time $=(20+30+10)s=60s$

Average distance $=\frac{total distance}{total time} = \frac{2100}{60}=35m/s$

To learn more about Average speed, refer to:

brainly.com/question/21097620

3 0

2 years ago

An electric fence displays a warning sign about the voltage and amperage of the fence. How would amperage and voltage affect the

Lorico [155]

V = volts
<span>I = amps </span>
<span>P = rate or energy transfer (power) </span>
<span>and </span>
<span>P = V * I</span>

4 0

3 years ago

Someone please help

Vaselesa [24]

Answer:

hi there!!

Explanation:

Nickel 149 pm

Cobalt 152 pm

Calcium 194 pm

Potassium 243 pm

So Potassium is the correct answer

6 0

3 years ago

i need the answer asap plz A child rides her bike at a rate of 12.0 km/hr down the street. A squirrel suddenly runs in front of

Kruka [31]

-16 km/hr/sec because she slows down 4 km/hr (12 - 8) in 0.25 seconds. in one second (0.25 sec * 4) she would slow down by 16 km/hr (4 * 4). it’s negative acceleration because she’s slowing down

5 0

3 years ago

Read 2 more answers

5N of force is applied to move a large nail a distance of 10 cm from an electromagnet on a frictionless table. The nail is then

DedPeter [7]

Answer:

C) The rate of change from potential to kinetic energy is exponential.

Explanation:

As we know that total mechanical energy must be conserved here

As we know that there is no friction force on this system of electromagnet and nail

So here we can say that that

Magnetic potential energy of the nail + electromagnet system will convert into kinetic energy of the nail as it is released.

So we will have

Initial potential energy = work done to move it away by 10 cm

$U = 5(0.10)$

$U = 0.5 J$

now as the nail is released then this potential energy will start to convert into kinetic energy

So here correct answer must be

C) The rate of change from potential to kinetic energy is exponential.

7 0

3 years ago