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Pavlova-9 [17]
3 years ago
8

The closest approach distance between Mars and Earth is about 56 million km. Assume you can travel in a spaceship at 58,000 km/h

, which is the speed achieved by the New Horizons space probe that went to Pluto and is the fastest speed so far of any space vehicle launched from Earth. How long would it take to get to Mars at the time of closest approach?
Physics
1 answer:
vladimir1956 [14]3 years ago
6 0

Answer:

40.22 days

Explanation:

Given data:

Closest approach distance between Mars and Earth = 56 million km = 56 × 10⁶ km

Speed of the spaceship = 58000 km/h

Now, the time (t) is calculated as:

time = Distance / speed

on substituting the values, we get

t = 56 × 10⁶ km / (58000 km/h)

or

t = 965.517 hours

or

t = 965.517 / 24 days = 40.22 days

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Flauer [41]

The North America will not be able to view the eclipse because of its location on the earth caused by the tilting of the earth.

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The tilting of the Earth causes the difference in the amount of sun reaching each region of the earth like in the North America continent.

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4 0
2 years ago
g A cylinder of mass m is free to slide in a vertical tube. The kinetic friction force between the cylinder and the walls of the
sdas [7]

Answer:

The vertical distance is  d = \frac{2}{k} *[mg + f]

Explanation:

From the question we are told that

   The mass of the cylinder is  m

    The kinetic frictional force is  f

Generally from the work energy theorem

    E  =  P +  W_f

Here E the the energy of the spring which is increasing and this is mathematically represented as

       E =  \frac{1}{2} * k  *  d^2

Here k is the spring constant

        P is the potential energy of the cylinder which is mathematically represented as

     P  = mgd

And

     W_f  is the workdone by friction which is mathematically represented as

      W_f  =  f *  d

So

    \frac{1}{2} * k  *  d^2 =  mgd +  f *  d

=>    \frac{1}{2} * k  *  d^2 =  d[mg +  f    ]

=>  \frac{1}{2} * k  *  d =  [mg +  f    ]

=> d = \frac{2}{k} *[mg + f]

5 0
4 years ago
21. A toy car starts from rest and begins to
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Answer:

v = 66 m/s

Explanation:

Given that,

The initial velocity of a car, u = 0

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We need to find the final velocity of the toy after 6 seconds.

Let v is the final velocity. It can be calculated using first equation of motion. It is given by :

v = u +at

v = 0 + 11 m/s² × 6 s

v = 66 m/s

So, the final velocity of the car is 66 m/s.

8 0
3 years ago
Estimate the wavelength of electrons that have been accelerated from rest through a potential difference of 60 kV.
ivolga24 [154]

Answer: 2.068*10^{-14}m

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by making λ subject of formulae we have that

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λ = \frac{19.878*10^{-26} }{9.612*10^{-12} }

by doing the necessary calculations, we have that

λ = 2.068*10^{-14}m

8 0
3 years ago
What are the similarities between strong nuclear force and weak nuclear force
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7 0
3 years ago
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