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rusak2 [61]
3 years ago
11

What is the total kinetic energy and potential energy of a object or group of objects

Physics
1 answer:
expeople1 [14]3 years ago
7 0

it is a part of gravity because it brings you back down

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Which option is an example of chemical energy being transformed into thermal energy?
mylen [45]

Answer:

d

Explanation:

3 0
3 years ago
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Jupiter's satellite Europa orbits Jupiter with a period of 3.55 d at an orbital radius of 6.71 108 m (assume the orbit to be cir
yawa3891 [41]

Answer:

(a)

M = 1.898 x 10^27 kg

(b)

v = 13.74 km/s

(c) E = 0.28 N/kg

Explanation:

Time period, T = 3.55 days = 3.55 x 24 x 3600 second = 306720 s

Radius, r = 6.71 x 10^8 m

G = 6.67 x 10^-11 Nm^2/kg^2

(a) T=2\pi \sqrt{\frac{r^{3}}{GM}}

M=\frac{4\pi ^{2}r^{3}}{GT^{2}}

M=\frac{4\times3.14^{2}\times 6.71^{3}\times 10^{24}}{6.67\times 10^{-11}\times 306720^{2}}

M = 1.898 x 10^27 kg

(b) Let v be the orbital velocity

v=\frac{2\pi r}{T}

v=\frac{2\times 3.14\times 6.71\times 10^{8}}{306720}

v = 13739.5 m/s

v = 13.74 km/s

(b) The gravitational field E is given by

E = \frac{GM}{r^{2}}

E = \frac{6.67\times10^{-11}\times 1.898\times 10^{27}}{6.71^{2}\times 10^{16}}

E = 0.28 N/kg

6 0
3 years ago
A machine that uses 200 w of power moves an object a distance of 15 m in 25 sec. Find
Sergeeva-Olga [200]

Answer:dummy

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Dum dum

6 0
3 years ago
What are some physical changes that occur at school? at home ? in nature ?
ad-work [718]
Tearing paper

Breaking your pencil

Chopping down a tree

Breaking Mom's favorite vase ... I did that one before :)

Those are some examples of physical changes happening around us  

8 0
4 years ago
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Suppose that 2 scientists use different measurement systems in their work. What problems might arise if they shared their data?
bixtya [17]
<span>In assumption that there were two scientists who used different measurement systems in their research. The problems that might arise if they shared their data is obviously and primarily error. Errors are recognized and one element in every measure, system and quantity. Error was already even present in the measurement system alone a scientist used and it will furthermore aggregate, when these two different scales are combined the more error escalates in the process. There are two types: random and systematic error.   </span>



8 0
4 years ago
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