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blagie [28]
4 years ago
14

What is an hypothesis??

Physics
2 answers:
egoroff_w [7]4 years ago
8 0
An educated guess to something you should test over and over
Gekata [30.6K]4 years ago
5 0
<span>a proposition made as a basis for reasoning, without any assumption of its truth.</span>
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Mars has a mass of about 6.24 Ã 1023 kg, and its moon phobos has a mass of about 9.2 Ã 1015 kg. if the magnitude of the gravitat
Effectus [21]
Given: Mass of Mars Mm = 6.24 x 10²³ Kg;  

           Mass of Phobos Mp = 9.2 x 10¹⁵ Kg

           Gravitational  Force F = 4.47 X 10¹⁵ N

           Gravitational constant G = 6.67 X 10⁻¹¹ N m²/Kg²

           Radius r = ?

Formula: F = GMmMp/r²  derive r

               r = √GMmMp/F

     r = √(6.67 x 10⁻¹¹ N m²/Kg²)(6.24 x 10²³ Kg)(9.2 x 10¹⁵ Kg)/4.47 x 10¹⁵ N

     r = √(6.67 x 10⁻¹¹ N m²/Kg²)5.74 x 10³⁹ Kg²/4.47 x 10¹⁵ N

     r = √8.57 x 10¹³ m

     r = 9,257,429 m

or r = 9.26 x 10⁶ m

8 0
4 years ago
A neutron is confined in a one-demensional potential box of width 5.0 x 10^-15 m. Calculate the minimum kinetic energy of the ne
kvv77 [185]

Answer:

E_1=1.31\times 10^{-12}\ J

Explanation:

Given that,

Width of a one dimensional potential box, x=5\times 10^{-15}\ m

The energy of a particle in one dimensional box is given by :

E_n=\dfrac{n^2h^2}{8mx^2}

h = Planck's constant

m = the mass of the proton

For minimum kinetic energy, n = 1

E_1=\dfrac{(6.63\times 10^{-34})^2}{8\times 1.67\times 10^{-27}\times (5\times 10^{-15})^2}

E_1=1.31\times 10^{-12}\ J

So, the minimum kinetic energy of the neutron is 1.31\times 10^{-12}\ J. Hence, this is the required solution.

8 0
3 years ago
Which change will always result in an increase in the gravitational force between two objects? increasing the masses of the obje
abruzzese [7]

By definition, we have that the gravitational force is given by:

F = \frac{G * m1 * m2}{r ^ 2}

Where,

G: gravitational constant

m1: mass of object number 1

m2: mass of object number 2

r: distance between both objects.

Therefore, for the gravitational force to increase, the following conditions must be met:

1) Increase the mass of the objects so that the numerator of the equation is greater.

2) Decrease the distance between the objects so that the denominator of the equation is smaller.

Answer:

A change that will always result in an increase in the gravitational force between two objects is:

increasing the masses of the objects and decreasing the distance between the objects

4 0
3 years ago
Read 2 more answers
Which is an example of a screw?
NikAS [45]
Which one looks like a screw
A is shoes
B is a fork (lever)
C is a wind chime shaped like a screw
D is a stapler (lever)
5 0
3 years ago
If a pitcher throws a baseball 10 m in 30 seconds - what would be the average speed of the baseball
dangina [55]
S = d/t
S = 10m/30s
S = 0.33m/s
6 0
3 years ago
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