Ask question

Ask question

All categories

3 years ago

7

Need help on this thanks

1 answer:

LuckyWell [14K]3 years ago

7 0

The answer is Air pressure.

:)

You might be interested in

Which of the following affect friction (you can choose more than 1)

Anastaziya [24]

I think it would be WEIGHT and ROUGHNESS OF SURFACE.

4 0

3 years ago

Read 2 more answers

What is the freezing point of an aqueous solution that boils at 101 degrees C? Kfp = 1.86 K/m and Kbp = 0.512 K/m. Enter your an

astra-53 [7]

Answer:

-3.63 degree Celsius

Explanation:

We are given that

Boiling point of solution= $T_b=101^{\circ}$ C

Boiling point water=100 degree Celsius

$K_f=1.86K/m$

$K_b=0.512 K/m$

$\Delta T_b=T-T_0$

Where $T$ =Boiling point of solution

$T_0=$ Boiling point of pure solvent

$\Delta T_b=101-100=1^{\circ}$ C

$\Delta T_b=k_bm$

Using the formula

$1=0.512\times m$

Molality, $m=\frac{1}{0.512}$ m

$\Delta T_f=k_fm$

Using the formula

$\Delta T_f=\frac{1}{0.512}\times 1.86$

$\Delta T_f=3.63 C$

We know that

$\Delta T_f=T_0-T_1$

Where $T_0$ =Freezing point of solvent

$T_1=$ Freezing point of solution

Using the formula

$3.63=0-T_1$

Freezing point of water=0 degree Celsius

$T_1=0-3.63=-3.63 C$

Hence, the freezing point of solution=-3.63 degree Celsius

7 0

3 years ago

15) What is the momentum of a 280 kg motorcycle moving with a velocity of 15 m/s?

enot [183]

Answer:

..

Explanation:

6 0

2 years ago

Which of the following equations can be used to directly calculate an object's impulse?

Iteru [2.4K]

I believe the answer is B

7 0

4 years ago

What is the z coordinate for the above vector?

Hitman42 [59]

120 m would be he answer

4 0

3 years ago