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Softa [21]
3 years ago
15

I NEED HELP PLEASE, THANKS! :)

Physics
1 answer:
Luden [163]3 years ago
8 0

Answer:

The ball will be attracted to the negatively charged plate. It'll touch and pick up some electrons from the plate so that the ball becomes negatively charged. Immediately the ball is repelled by the negative plate and is attracted to the positive plate. The ball gives up electrons to the positive plate so that it is positively charged and suddenly attracts to the negative plate again, flies over to it and picks up enough electrons to be repulsed by negative plate and again to the positive plate and that continues.

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Doing a physics Lab and need to propagate uncertainty for experimental results. I need the uncertainty in order to add it to my
alexandr1967 [171]

Answer:

Explanation:

Not really sure what you're trying to do. You propagate uncertainties for indirect measurements, as in when you calculate a value from other values.

What you have here is a series of values of direct measurements it seems.

Anyway, for error bars will have a width of 2 times the uncertainty reported.

For example on the first one

373.67 +/- 15.444

You would have an error bar with a width of 2 * 15.444 = 30.888. This bar would be centered at 373.677. The lowest point of the error bar would be at 358.233 and the highest point at 389.121.

You also mentioned a scatter plot, but scatter plots are 2D at least. Are these measurements associated to something else like time? You need 2 coordinates for each point in a scatter plot.

8 0
3 years ago
How much force would it would be required to stop a 950kg car traveling at 30 M/S in 1.5 seconds
gavmur [86]

Answer:

28500

Explanation:

Force equation - F = m * a

F = 950 * 30

F = 28500

7 0
3 years ago
Matter that organisms require for their life processes are
hram777 [196]

Answer:

nutrients

Explanation:

Nutrients are matter that organisms require for their life processes.

5 0
3 years ago
The speed limit on some interstate highways is roughly 80 km/h. What is this in meters per second? How many miles per hour is th
sergey [27]

Answer:

1) Speed in m/s equals 22.22 m/s.

2) Speed in miles per hour equals 49.712 mph.

Explanation:

Since we know that in 1 kilometer there are 1000 meters and in 1 hour there are 3600 seconds hence we can write

80km/h=\frac{80\times 1000m}{3600s}=22.22m/s

Now we know that 1 mile equals 1.609 kilometer  hence we conclude that 1 kilometer equals \frac{1}{1.609}=0.6214mile

Hence

80km/h=\frac{80\times 0.6214miles}{1h}=49.712mph

3 0
4 years ago
Which of the following is an example of a long-term climatic change?
Vaselesa [24]
Winter and Summer happen every year, pretty much on schedule.
When they happen, the 'weather' changes, but the 'climate' doesn't.

If you live in the right place, then you might get several blizzards every
Winter.  They're changes in the 'weather' but not in the 'climate'.

If the temperature where you live stays well below zero for a hundred
years, then you might be entering an ice age. 

Or let's say your town has had blizzards every Winter for the past 20 years
but it never had one for 100 years before that. 

Either of these would be a climatic change.  
5 0
4 years ago
Read 2 more answers
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