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topjm [15]
3 years ago
9

a spacecraft is flying towards the moon using your knowledge of gravitational force explain the moon's gravitational pull on the

spacecraft
Physics
1 answer:
laiz [17]3 years ago
7 0
The gravitational force increseaes exponentially as you get closer to the moon. Since the denominator of the gravitational force formula is r^2, cutting the distance in half increases the force 4-fold.
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An object is placed 250 cm in front of a concave circular mirror, and the image of the object also appears at 250 cm in front of
Scrat [10]

Answer:

Radius of curvature of the mirror = 250 cm

Explanation:

Given:

Object distance from mirror = 250 cm (u=-250)

Object distance appears in mirror = 250 cm (v=-250)

Find:

Radius of curvature of the mirror

Computation:

Using mirror formula

1/f = 1/v + 1/u

1/f = 1/(-250) + 1/(-250)

f = (-250/2)

f = -125 cm or 125 cm

Radius of curvature of the mirror = 2(f)

Radius of curvature of the mirror = 2(125)

Radius of curvature of the mirror = 250 cm

3 0
2 years ago
Why does water in hot springs always remain hot? Why doesn't it's thermal energy spread out?​
Alex_Xolod [135]

Answer:

Explanation:

because of the tempature

6 0
3 years ago
A 2.98 nF parallel-plate capacitor is charged to an initial potential difference of 49 V and then isolated. The dielectric mater
I am Lyosha [343]

Answer:

Potential difference will be 151.9 volt  

Explanation:

We have given capacitance of the capacitor C=2.98nF=2.98\times 10^{-9}F

Voltage V = 49 Volt

Dielectric constant K = 3.1

We have to find the potential difference

We know that when a dielectric medium is introduced then p[otential difference is increases by k times

As the dielectric constant k = 3.1

So potential difference will be = 3.1×49 = 151.9 volt

8 0
3 years ago
Read 2 more answers
by scale drawing, find the resultant of vectors 70N inclined at100N and direction of the resultant 100N​
Thepotemich [5.8K]

Answer: 70n=

<h3>at100n=</h3>

100n=

Explanation:

4 0
3 years ago
What would you do to improve the precision of an experiment?
GenaCL600 [577]

Explanation:

Precision represents that how close the different measurements of the sample one take are to one another.

  • One can increase the precision in lab by paying attention to each and every detail.
  • Usage of the equipment properly and also increasing the sample size.
  • Ensuring that the equipment is calibrated properly. They should be clean and functioning. Using equipment which is not functioning correctly can cause results to swing wildly and also bits of the debris stuck to the equipment can influence the measurements of the mass and the volume.
  • Each measurement must be taken multiple times, especially if experiments in which combining of the substances in specific amounts is involved.
5 0
3 years ago
Read 2 more answers
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