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Paraphin [41]
3 years ago
11

NEED HELP ASAP!!!!!!!!!!

Physics
1 answer:
stepan [7]3 years ago
3 0

Answer:

*The same balloon put into the freezer would be smaller and shriveled.

* The volume decreases as the temperature decreases.

* using a hypothetical starting volume of 2 liters in the balloon at 42 degrees Celsius, we can use the equation V1/T1 =V2/T2

V2= 1.54 liters which proves when temperature decreases , volume decreases as well.

Explanation:

The volume increases as the temperature increases, and volume decreases as the temperature decreases.

using a hypothetical starting volume of 2 liters in the balloon at 42 degrees Celsius, we can use the equation V1/T1 =V2/T2

Change Celsius to kelvin by adding 273.

2 liters/ 315 K = V2/243 K

Cross multiply and then divide by 315 to find V2

2 liters x 243 K / 315 K = V2

The Kelvin cancels itself out.

486 liters /315=V2

V2= 1.54 liters.

This proves that when the temperature decreases , so does the volume.

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C

Explanation:

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Answer:

<h3>130N</h3>

Explanation:

according to Newtons second law;

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initial velocity = 8m/s

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Answer:

a.6373.5 N

b.-3837.6 N

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According to question

mg-F_N=\frac{mv^2}{r}

Where g=9.81 m/s^2

Substitute the values

1040\times 9.81-F_N=\frac{1040\times (9.4)^2}{24}

10202.4-F_N=3828.9

F_N=10202.4-3828.9=6373.5 N

b.v=18m/s

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1040\times 9.81-F_N=\frac{1040\times (18)^2}{24}

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The momentum p is given by the following equation:  

p=m.V (1)  

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m is the mass of the object  

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m_{1}v_{1}+m_{2}v_{2}=m_{1}u_{1}+m_{2}u_{2}   (2)  

Where:

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m_{2} is the mass of the asteroid

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