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3 years ago

Use these words to talk about water vapor in the atmosphere.Humidity, Dew

1 answer:

6 0

Answer: Water vapors are the gaseous form of water when liquid water is exposed to heat or boiling temperature it vaporizes.

Explanation:

Humidity is the total concentration of water in the atmosphere or air. Dew point can be defined as the temperature at which the air get saturated into vapors. Clouds are the mass of water vapors enters into higher atmosphere due to evaporation these water vapors when condense they result in precipitation in the form of rain, hail, and others. The water cycle is the circulation of water in the form of vapors and liquid in the atmosphere, hydrosphere, and earth.

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You and your fellow students have been challenged to design a rubber band powered car. You will use the elastic potential energy

Tcecarenko [31]

Answer:

The correct answer is A

Explanation:

3 0

3 years ago

13. Convert 30° C to Fahrenheit doo a. 30 F b. 86 F 34 F d. 100 F

GREYUIT [131]

Answer:86F

Explanation:

Using the formula

F=(°Cx9/5)+32

F=(30x9/5)+32

F=(270/5)+32

F=54+32

F=86F

6 0

3 years ago

A 50-cm-long spring is suspended from the ceiling. A 270 g mass is connected to the end and held at rest with the spring unstret

AveGali [126]

Answer:

k = 22.05 N/m

Explanation:

The potential energy of the mass is converted into potential energy of the spring.

Given:

mass m = 0.27 kg

gravitational constant g = 9.8 m/s²

distance falling/ stretching of spring h = 0.24 m

$U_{gravity} = U_{spring}\\ mgh = \frac{1}{2} kh^{2}$

Solving for k:

$k = 2mg\frac{1}{h}$

5 0

4 years ago

Atoms of which pair of elements will form ionic bonds in a compound?

pishuonlain [190]

Answer:

Be and Cl

Explanation:

This pair will form an ionic bond because Be is a metal while Cl is a nonmetal.'

Ionic bonds are bonds between nonmetals and metals.

5 0

2 years ago

You have been working on a new, strong, lightweight ceramic which will be used to replace steel bearing balls. One cubic meter o

marin [14]

Answer:

r=2.6 cm

Explanation:

Hi!

Lets call steel material 1, and the new alloy material 2. You know their densities:

$\rho_1=8.08*10^3\frac{kq}{m^3}\\\rho_2=3.14*10^3\frac{kq}{m^3}$

The volume of a sphere with radius r is given by:

$V=\frac{4}{3}\pi r^3$

Then the masses of the bearings are:

$m_1=\rho_1V_1=\frac{4}{3}\pi r_1^3 \\m_1=\rho_2V_2=\frac{4}{3}\pi r_2^3$

For the masses to be the same:

$\rho_1 V_1 = \rho_2 V_2\\\frac{V_2}{V_1} =\frac{\rho_1}{\rho_2}\\(\frac{r_2}{r_1})^3 = \frac{8.08}{3.14}=2.57\\r_2=\sqrt[3]{2.57}\;r1 =1.37r_1=1.37*1.9cm=2.6cm$

5 0

4 years ago