All categories

3 years ago

Why does an iceberg have more HEAT than a cup of coffee?

Physics

2 answers:

Marizza181 [45]3 years ago

4 0

Answer:

The hot coffee has a higher temperature, but not a greater internal energy. Although the iceberg has less internal energy per mass, its enormously greater mass gives it a greater total energy than that in the small cup of coffee.

Drupady [299]3 years ago

3 0

Answer:

Explanation:

You might be interested in

Do all planets orbit the sun in the same direction

horsena [70]

Answer:

Explanation:

All planets are different than others and bigger so that means no

8 0

3 years ago

The process of bringing the solvent to boiling, evaporating it all away, and leaving the solute behind, is known as

Georgia [21]

I believe the correct answer from the choices listed above is option D. <span>The process of bringing the solvent to boiling, evaporating it all away, and leaving the solute behind, is known as evaporation. Hope this answers the question. Have a nice day.</span>

8 0

4 years ago

Two children, Ferdinand and Isabella, are playing with a waterhose on a sunny summer day. Isabella is holding the hose in herhan

sweet [91]

Answer:

84.196%

Explanation:

g = Acceleration due to gravity = 9.81 m/s²

$y_0=1\ m$

x = 10 m

t = Time taken

$v_0$ = 3.5 m/s (assumed, as it is not given)

$A_0$ = $\pi 1.5^2$

We have the equation

$y=y_0+ut+\dfrac{1}{2}gt^2\\\Rightarrow 0=y_0-\dfrac{1}{2}gt^2\\\Rightarrow t=\sqrt{\dfrac{2y_0}{g}}\\\Rightarrow t=\sqrt{\dfrac{2\times 1}{9.81}}\\\Rightarrow t=0.45152\ s$

$x=x_0+vt\\\Rightarrow 10=0+v0.45152\\\Rightarrow v=\dfrac{10}{0.45152}\\\Rightarrow v=22.14741\ m/s$

From continuity equation we have

$Av=A_0v_0\\\Rightarrow A=\dfrac{A_0v_0}{v}\\\Rightarrow A=\dfrac{\pi 1.5^2\times 3.5}{22.14741}\\\Rightarrow A=1.11706\ cm^2$

Fraction is given by

$f=\dfrac{A_0-A}{A_0}\times 100\\\Rightarrow f=\dfrac{\pi 1.5^2-1.11706}{\pi 1.5^2}\times 100\\\Rightarrow f=84.196\ \%$

The fraction is 84.196%

4 0

3 years ago

5. Which describes the reaction of a substance to form one or more nen substances?

murzikaleks [220]

Answer:

A chemical reaction

Explanation:

In a physical change the chemical composition of a matter stays the same. One example is a change in state of matter. Consider water, you can heat it to vapour and cool it to form ice but you can get the exact same mass and colour after any physical change happens.

To form a two or more substance an internal arrangement of atoms must happen. For that chemical change should occur as only in chemical reactions atoms are rearrange to form new substances.

5 0

4 years ago

Match each orbiting body to its attribute.

Anuta_ua [19.1K]

Answer:

Gas Giant- atmosphere primarily made of hydrogen and helium

Asteroid-varies greatly in size from one to the next

Comet-has a characteristic glow

Meteoroid-usually burns up if it enters Earth's

Explanation:

5 0

4 years ago