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grandymaker [24]
4 years ago
10

The bottle's mass is 0.2 kg. The diameter of its base is 10cm. How much pressure does the bottle exert on the table? A) 64 Pa B)

25 Pa C) 6.4 Pa D) 255 Pa
Physics
1 answer:
Semenov [28]4 years ago
4 0

Answer:

B 25pa.................................

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Which of the following units is likely to be used while calculating the distance between two galaxies?
Elden [556K]
The answer is probably light years if your looking for something specific it could also be an Astronomical unit or Distance unit but mainly look for LIGHT YEARS
8 0
3 years ago
A train is traveling north. it goes 200 km /hr for 2.5 hours how far did the train go.
DerKrebs [107]

Answer:

500Km

Explanation:

This question is an example of speed, distance, time.

The formula for working out the distance is: Speed*Time

To work this out you would need to multiply the speed of 200Km/h by the time of 2.5 hours, this gives you 500 Km. This is because the formula to work out the distance is speed * time.

In adittion, if the train is traveling at 200km per hour then that means that over the course of an hour the distance travelled would be 200Km. So, by multiplying the speed by the time you are working out how far it travelled in that given time.

1) Multiply 200 by 2.5.

200*2.5=500Km

5 0
3 years ago
If you sit on a skateboard and push against a brick wall, what would happen? Why do you think this?
Troyanec [42]

Answer:

well when if you are sitting down and then push off of the brick wall you will be backwards so you can't see anything so you might hit someone or something so you would have to be careful

Explanation:

the reason why i think this is because i have a brother who skateboard and he wants to help me get better and when we are just playing we sit down on the skateboard and push off things and ran into a pole because i was backwards and wasn't paying attention so that's why i think that

7 0
3 years ago
A movie stunt performer is filming a scene where he swings across a river on a vine. The safety crew must use a vine with enough
Julli [10]

Answer:

1125.66956 N

Explanation:

m = Mass of stunt performer

g = Acceleration due to gravity = 9.81 m/s²

v = Velocity of the swing = 7 m/s

T = Tension

r = Radius of the swing = Length of vine = 11.5 m

From the free body diagram

T-mg-m\frac{v^2}{r}=0\\\Rightarrow T=mg+m\frac{v^2}{r}\\\Rightarrow T=m(g+\frac{v^2}{r})\\\Rightarrow T=80(9.81+\frac{7^2}{11.5})\\\Rightarrow T=1125.66956\ N

The minimum tension force the vine must be able to support without breaking is 1125.66956 N

7 0
3 years ago
Do you think that solids can undergo convection
Alex_Xolod [135]
<span>Convection means the movement happens inside a fluid by the cause of too much heat and lesser density to rise, and also the colder cause denser materials to sink.
Thus, Solid cannot undergo convection because the molecules inside the solid are closer and can hardly move unlike liquid.
So, when the temperature got hotter or colder, the molecules on solid will only vibrate and not convert.
Therefore, this concludes that the solid do not undergo convection rather conduction of heat.</span>



7 0
4 years ago
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