3 years ago

Help quick!!!!!

1 answer:

8 0

A/ pressure and collision frequency increase.
think of it this way. there's less room in total when u decrease volume, so particles will hit more often because they travel less

You might be interested in

Which three of the following are characteristics of ionic bonding?

Lyrx [107]

Gains at least one nutrient

7 0

3 years ago

Which of these values is equivalent to the change in momentum of

iragen [17]

<span>A. An impulse of a force changes the momentum of a body and has the same units and dimensions as momentum.</span>

3 0

3 years ago

Read 2 more answers

A soap box derby car at the top of a ramp has more _________ energy and at the finish line at the bottom of the ramp it has more

astra-53 [7]

Kinetic, potential because, at the top of the ramp it’s going faster. Potential at the bottom of the ramp is potential because, it’s not doing any motion.

5 0

3 years ago

19 dm expressed in millimeters

alina1380 [7]

1900 millimeters thats wht i got

6 0

2 years ago

A 77.0 kg woman slides down a 42.6 m long waterslide inclined at 42.3. at the bottom, she is moving 20.3 m/s.how much work did f

zhuklara [117]

Answer:

5.791244495 KNm

Explanation:

The height h is given by, $h=42.6sin42.3^{o}$

Potential energy, PE is given by

PE=mgh where m is mass of the woman, g is acceleration due to gravity whose value is taken as $9.81 m/s^{2}$ and h is already given hence substituting 77 Kg for m we obtain

$PE=77*9.81*42.6sin42.3^{o}=21656.7095 Nm$

PE=21.6567095 KNm

We also know that Kinetic energy is given by $0.5mv^{2}$ where v is the velocity and substituting v for 20.3 we obtain

$KE=0.5*77*20.3^{2}=15865.465 Nm$

KE=15.865465 KNm

Friction work is the difference between PE and KE hence

Friction work=21.6567095 KNm-15865.465 Nm=5.791244495 KNm

8 0

3 years ago