All categories

3 years ago

Please help I really need but this time I'm fr I don't have much time ill mark brainliest

Chemistry

2 answers:

ankoles [38]3 years ago

8 0

Answer:

The answer is D

Explanation:

More height= more potential energy

FinnZ [79.3K]3 years ago

5 0

Answer:

i fi am not wrong the correct answer is D

Explanation:

You might be interested in

A 2.00 m2 tank of a fluid that has a density of 1000 kg/m is draining at a rate of S liters/min. Determine the time for the tank

professor190 [17]

Answer:

the "d" option

Explanation:

Cómo se pronuncia

To calculate the flow I need the volume and time to comply with the formula:

S = V / t

V = volume

t = time

In this problem I have volume and density as data.

There is no way to calculate the time so the correct answer is the "d" option

4 0

4 years ago

A thin-walled sphere rolls along the floor. What is the ratio of its translational kinetic energy to its rotational kinetic ener

ICE Princess25 [194]

Explanation:

The kinetic energy of translation

$E_1=\frac{1}{2}mv^2$

m= mass v= linear velocity

The kinetic energy of rotation

$E_2=\frac{1}{2}I\omega^2$

I= MOI of the thin walled sphere =kmR^2

where ω= v/R= angular velocity

$E_2=\frac{1}{2}kmR^2\frac{v}{R}^2$

Then

$\frac{E_1}{E_2} = \frac{0.5mv^2}{0.5kmR^2\frac{v}{R}^2 }$

=1/k

solid sphere: k=0.4; E1/E2 =1/0.4 = 2.5;

hollow sphere: k=2/3; E1/E2 = 1.5

3 0

3 years ago

Identify the molecule with the strongest intermolecular force <br> HF<br> HCl<br> Hl<br> HBr

Dominik [7]

Hey there !:

HF s molecule with the strongest intermolecular force

<span>HF > HI > HBr > HCl</span><span>

</span>The main factor of influence at the boiling point is the question of intermolecular forces, but not only that, the molar mass also has influence (the greater the molar mass, the greater the boiling point). Note that the only one forming hydrogen bridges is the HF, therefore the largest boiling point, iodine, bromine and chlorine have the same type of intermolecular (permanent dipole) connections as they are polar, and what will differentiate the boiling point of each one is the molar mass.

<span />

6 0

3 years ago

Which best describes the process that occurs when liquid water becomes<br> ice?

garri49 [273]

Answer:

Freezing

Explanation:

When a liquid goes to a solid, this process is called freezing.

7 0

3 years ago

Read 2 more answers

if a gas sample has a pressure of 761 mmhg at 0.00°c by how much does the temperature have to decrease to lower the pressure to