Estimated Physics 32 GT??

[dubi2pro]

therfore more weight! and more gravity!

 

[OneOfAKind]

and they asked to calculate the height

No the last part of that question when another salmon with much greater mass jumps out, that one

 

[Harsh Poddar]

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[Ozoman]

therfore more weight! and more gravity!

The mass actually has no effect on the height of the salmon.

There are 2 ways to look at this:

one:

They told you they both leave the surface of the water at the same speed.
You were told to ignore air resistance.
let's look at it in terms of energy.

KE at bottom = PE at top for both salmons

(0.5)(M)(V^2) = (M)(10)(H)

The 2 Ms cancel out.

0.5V^2 = 10H

If the 2 Velocities are the same then H is the same.
Mass has no effect.

Two:

They leave the surface of the water at the same speed. (4.05 m/s to be exact)
They have the same acceleration due to gravity. (-10 m/s/s)
This means they will both travel for the same period of time before stopping.
Therefore, distance traveled is the same.

 

[Faheen]

33

it was 55 because the substance was a hot liquid and it was a cooling curve

 

[Muhammad Haris Ghani]

Yea the answer is infrared

 

[qwerty1234567890]

what answer u got for the mass of the air in the room?

 

[dubi2pro]

what answer u got for the mass of the air in the room?

decreased

 

[Sifat2552]

Guys i have given the direction as towards the bottom of the page... how much mark will i lose?? plz do not tell me 2.....
and what was the answer for mass decreasing of air... i mean what was the explanation?? wat do u think the GT will be??

 

[Phoenix Blood]

mass of room decreases

manyyy are saying mass wouldnt change at all! it would be constant!

i also wrote it decreased!

The MASS of AIR in the room. Mass is the amount of matter in a body, how would the AMOUNT change if you're varying temperature or pressure?

 

[Phoenix Blood]

mirror should be staright (a) so that the ray goes till person on cliff

The person was down the valley. It should have been at the angle facing upwards, thus.

 

[Phoenix Blood]

Angle of refraction is 22

The ray traveled from glass to water. We know that ray moves away from the normal when traveling from a denses to a rarer medium. Since the angle of incidence was 30 degrees, angle of refraction should have been bigger.
.... i got 42... sine r/sine i

 

[Phoenix Blood]

The mass actually has no effect on the height of the salmon.

There are 2 ways to look at this:

one:

They told you they both leave the surface of the water at the same speed.
You were told to ignore air resistance.
let's look at it in terms of energy.

KE at bottom = PE at top for both salmons

(0.5)(M)(V^2) = (M)(10)(H)

The 2 Ms cancel out.

0.5V^2 = 10H

If the 2 Velocities are the same then H is the same.
Mass has no effect.

Two:

They leave the surface of the water at the same speed. (4.05 m/s to be exact)
They have the same acceleration due to gravity. (-10 m/s/s)
This means they will both travel for the same period of time before stopping.
Therefore, distance traveled is the same.

What about the mass of air in the room thingy?

 

[OneOfAKind]

The mass actually has no effect on the height of the salmon.

There are 2 ways to look at this:

one:

They told you they both leave the surface of the water at the same speed.
You were told to ignore air resistance.
let's look at it in terms of energy.

KE at bottom = PE at top for both salmons

(0.5)(M)(V^2) = (M)(10)(H)

The 2 Ms cancel out.

0.5V^2 = 10H

If the 2 Velocities are the same then H is the same.
Mass has no effect.

Two:

They leave the surface of the water at the same speed. (4.05 m/s to be exact)
They have the same acceleration due to gravity. (-10 m/s/s)
This means they will both travel for the same period of time before stopping.
Therefore, distance traveled is the same.

Thank you so so so so much! I was arguing with my friends that the height will be the same, but they were like no, its heavier so it'll jump to a lesser height !!

 

[dishadishki]

i

The MASS of AIR in the room. Mass is the amount of matter in a body, how would the AMOUNT change if you're varying temperature or pressure?

The mass of the air decreases. as temperature increases the volume also increases(charles' law) and when volume increases pressure decreases(boyle's law) but pressure did not increase, therefore volume must have decreased and so mass also decreases. the air escapes from the open window

 

[dishadishki]

i

The mass of the air decreases. as temperature increases the volume also increases(charles' law) and when volume increases pressure decreases(boyle's law) but pressure did not increase, therefore volume must have decreased and so mass also decreases. the air escapes from the open window

In addition to that,if the volume of the gas decreases and density is constant- mass obviously decreases