All categories

2 years ago

Please help me I need this for a test

Physics

1 answer:

Marysya12 [62]2 years ago

8 0

Answer:

Explanation:

Lol thats big tufffffffffvffffffftg

fuf

You might be interested in

Early in the morning, when the temperature is 4.5 ∘C, gasoline is pumped into a car's 53-L steel gas tank until it is filled to

Lynna [10]

Answer:

$\Delta V=1.0911\ L$

Explanation:

Given:

Initial temperature, $T_i=4.5^{\circ}C$

initial volume, $V_i=53\ L$

final temperature, $T_f=27^{\circ}C$

volumetric coefficient of thermal expansion for gasoline, $\beta_g=950\times 10^{-6}\ K^{-1}$

volumetric coefficient of thermal expansion for steel, $\beta_s=35\times 10^{-6}\ K^{-1}$

Now the increment in the volume of the container:

$\Delta V_s=V_i.\beta_s.\Delta T$

$\Delta V_s=53\times 35\times 10^{-6}\times (27-4.5)$

$\Delta V_s=41737.5\times 10^{-6}\ L$

and the increment in the volume of the gasoline:

$\Delta V_g=V_i.\beta_g.\Delta T$

$\Delta V_g=53\times 950\times 10^{-6}\times (27-4.5)$

$\Delta V_g=1132875\times 10^{-6}\ L$

Hence the difference in the increment of the two volumes:

$\Delta V=\Delta V_g-\Delta V_s$

$\Delta V=(1132875-41737.5)\times 10^{-6}$

$\Delta V=1.0911\ L$ of the gasoline spills out of the container in this case.

3 0

3 years ago

Would an oil ship moving at a speed of 10km/h have more or less momentum than a car moving at a speed of 100km/h? Explain your a

Rufina [12.5K]

Answer:

Multiply the mass times the speed for both, then compare.I would expect the mass of the oil ship to be more than 10 times the mass of the car, in which case its momentum would be greater.

PLZ MARK BRAINLIEST

7 0

2 years ago

Read 2 more answers

angela runs and slides across an icy path in her driveway. she comes to a stop because of friction. which free-body diagram show

svetoff [14.1K]

Answer: C

Explanation: You always have weight pushing down and natural force pushing up to neutralize those forces. The you add in friction and that’s how you find the answer. Plus I got it right in my quiz

4 0

2 years ago

Help!! It is DUE to TODAY...

vitfil [10]

The answer to your question would be 1.

5 0

2 years ago

Read 2 more answers

How many electrons have been removed from a positively charged electroscope if it has a net charge of 6x10-11?

alina1380 [7]

How much negative charge has been removed from a positively charged electroscope if it has a charge of 7.5x10-11C?

If C is Coulombs then, −1 C is equivalent to the charge of approximately 6.242×10^18 electrons.

You already gave the answer: -7.5x10–11C

It is like asking: What colour is my white horse?

Now if you want to know how many electrons have been removed, then multiplying the number of electrons in a coulomb by the coulombs you have, you get 4.6815 x 10^8 electrons. Which is almost the same answer as before.

3 0

2 years ago