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4 years ago

Which of these objects has the greatest inertia?

Physics

1 answer:

tangare [24]4 years ago

7 0

The answer would be aircraft carrier

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42.5 Quiz: The Rock Cycle

Snowcat [4.5K]

Answer: It formed when lava cooled quickly aboveground.

Explanation: Cause its right

8 0

3 years ago

Calculate the vapor pressure for a mist of spherical water droplets of radius 3.70×10−8m surrounded by water vapor at 298 K. The

poizon [28]

Answer:

The vapor pressure for a mist is $P= 25.92\ Torr$

Explanation:

From the question we are given that

The radius is $r = 3.70 *10^{-8} m$

The temperature is $T = 298K$

The vapor pressure of water $P_o = 25.2\ Torr$

The density of water is $\rho = 998 kg.m^{-3}$

The surface tension of water is $\sigma = 71.99 m N \cdot m^{-1}$

Generally the equation of that is mathematically represented as

$ln (\frac{P}{P_0} ) = \frac{2 \sigma M}{r \rho RT}$

Where P is the vapor pressure for mist

R is the ideal gas constant = 8.31

making P the subject in the formula

$P = e^ {\frac{2 \sigma M}{r \rho RT}} * P_0$

$= e^{\frac{2 *(0.07199)(0.018)}{(3.70*10^{-8})(998)(8.31)(298)} } * 25.2$

$P= 25.92Torr$

4 0

3 years ago

Neptunium. In the fall of 2002, scientists at Los Alamos National Laboratory determined that the critical mass of neptunium-237

Paladinen [302]

Answer:

Radius = 9.0216 cm

Explanation:

Given that:

The critical mass of neptunium-237 = 60 kg

Also, 1 kg = 1000 g

So mass = 60000 g

Density = 19.5 g/cm³

Volume = ?

So, volume:

$Volume=\frac {{Mass}}{Density}$

$Volume=\frac {60000\ g}{19.5\ g/cm^3}$

The volume of the material = 3076.92308 cm³

The expression for the volume of the sphere is:

$V=\frac {4}{3}\times \pi\times {(radius)}^3$

$3076.92308=\frac{4}{3}\times \frac{22}{7}\times {(radius)}^3$

$\frac{4}{3}\times \frac{22}{7}\times {(radius)}^3=3076.92308$

$88\times {(radius)}^3=64615.38468$

${(radius)}=\sqrt[3]{\frac{64615.38468}{88}}$

<u>Radius = 9.0216 cm</u>

4 0

4 years ago

Starting from rest, a 0.0367 kg steel ball sinks into a vat of corn syrup. The thick syrup exerts a viscous drag force that is p

Arisa [49]

Answer:

0.48 W

Explanation:

Given that:

the mass of the steel ball = 0.0367 kg

C = 0.270 N

g (acceleration due to gravity) = 9.8

Now;

At Terminal Velocity Weight is balance by drag force

mg =Cv

Making v the subject of the formula:we have:

$v = \frac {mg}{C}$

$v = \frac {0.0367*9.8}{0.270}$

v = 1.332 m/s

Thus, the Rate at which gravitational energy is converted to thermal energy once the ball reaches terminal velocity is:

P=Fv

P = mgv

$P = (0.0367*9.8)*1.332$

P=0.48 W

5 0

3 years ago

Calculate the number of molecules of hydrogen and carbon present in 4 g of methane

jekas [21]

Answer:

Answer = 6.022×10²³ molecules of CH4 which consists of 1 mole of C atoms and 4 moles of H atoms.

3 0

3 years ago

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