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Naddika [18.5K]
3 years ago
6

PLEASEE GUYS HELP I BEG YOU

Physics
1 answer:
raketka [301]3 years ago
7 0
0.520155077123917 i believe?? hope this helps
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HELP
blagie [28]

Answer:

A

Explanation:

hope its right

3 0
3 years ago
Determine the gravitational field 300km above the surface of the earth. How does this compare to the field on the earth's surfac
Serjik [45]
The strength of the gravitational field is given by:
g= \frac{GM}{r^2}
where
G is the gravitational constant
M is the Earth's mass
r is the distance measured from the centre of the planet.

In our problem, we are located at 300 km above the surface. Since the Earth radius is R=6370 km, the distance from the Earth's center is:
r=R+h=6370 km+300 km=6670 km= 6.67 \cdot 10^{6} m

And now we can use the previous equation to calculate the field strength at that altitude:
g= \frac{GM}{r^2}= \frac{(6.67 \cdot 10^{-11} m^3 kg^{-1} s^{-2})(5.97 \cdot 10^{24} kg)}{(6.67 \cdot 10^6 m)^2}  = 8.95 m/s^2

And we can see this value is a bit less than the gravitational strength at the surface, which is g_s = 9.81 m/s^2.
4 0
3 years ago
A new prototype cup has been designed to keep liquids, such as hot coffee or cold annk, near their original temperature for long
san4es73 [151]

Answer:

hope this was good for u and I believe it would be solid

4 0
3 years ago
A football player runs down a field with a speed of 8 m/s. How long will it take him to run 20m?
Shtirlitz [24]
To find the answer for this question, you simply need to divide 20 by 8, which is the speed he is traveling. 

20 / 8 = 2.5

The football player will run 20 yards in 2 1/2 seconds.
Hope that helped! =)
5 0
3 years ago
Read 2 more answers
A 6.0-cm-diameter horizontal pipe gradually narrows to 4.0 cm. When water flows through this pipe at a certain rate, the gauge p
denpristay [2]

Answer:

a n c

Explanation:

3 0
3 years ago
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