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3 years ago

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4. If you were an astronaut on the Moon, what would you experience? What would you see from your perspective?

2 answers:

hjlf3 years ago

8 0

an astronaut on the Moon could experience zero gravity, and would see stars and Earth.

klio [65]3 years ago

8 0

Answer:

Since Moon's gravity is 0.167 times the gravity of Earth, astronaut would weigh very less. He would not be able to walk and would be to able to jump to large distance. Also, due to lack of atmosphere, the sky would appear black and stars would be visible all the time. The Earth would also have phases as viewed from the Moon.

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Until a train is a safe distance from the station, it must travel at 5 m/s. Once the train is on open track, it can speed up to

SIZIF [17.4K]

Answer:

$5 m/s^2$

Explanation:

The acceleration of the train is given by:

$a=\frac{v-u}{t}$

where:

u = 5 m/s is the initial velocity of the train

v = 45 m/s is the final velocity of the train

t = 8 s is the time taken for the train to increase the velocity

Substituting numbers into the formula, we find

$a=\frac{45 m/s-5 m/s}{8 s}=5 m/s^2$

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4 years ago

Read 2 more answers

The sun is 1.50x10^11 m from earth. How long does it take the suns light to reach earth? How long

galina1969 [7]

Answer:

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3 years ago

A car traveled 176 miles on 6.4 gallons of fuel the car averaged how many miles per gallon

earnstyle [38]

It would be 27.5 miles per gallon

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3 years ago

Is it safe to drive your 1600-kg car at speed 34 m/s around a level highway curve of radius 190 m if the effective coefficient o

adoni [48]

Answer:

It is unsafe

Explanation:

v = Velocity of car = 34 m/s

r = Radius of turn = 190 m

$\mu$ = Coefficient of static friction = 0.5

m = Mass of car = 1600 kg

g = Acceleration due to gravity = 9.81 m/s²

The centripetal force is given by

$F_c=m\frac{v^2}{r}\\\Rightarrow F_c=1600\frac{34^2}{190}\\\Rightarrow F_c=9734.73\ N$

The frictional force is given by

$F_f=\mu mg\\\Rightarrow F_f=0.5\times 1600\times 9.81\\\Rightarrow F_f=7848\ N$

If the centripetal force is greater than the frictional force then the car will slip which makes it unsafe.

Here, the centripetal force is greater than the frictional force which makes it unsafe to drive it at that speed.

4 0

3 years ago

Calculate the power of a car that uses 12KJ of chemical energy in 6 seconds

PolarNik [594]

Explanation:

Power=work done/time

=> 12kJ/6s = 12000J/6s = 2000W = 2kW.

hope this helps you

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3 years ago