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kobusy [5.1K]
4 years ago
7

What does Ca stand for in chem?

Chemistry
2 answers:
abruzzese [7]4 years ago
7 0

Answer:

Calcium

Explanation:

Periodic table

shusha [124]4 years ago
5 0
Ca stands for the element Calcium in group 2A on the periodic table.
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To the nearest gram, what is the mass of of one spoonfull of sugar? g
Vaselesa [24]

Answer:

the mass of one spoonful of sugar to nearest gram is 10g

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3 years ago
A fan blade rotates with angular velocity given by ωz(t)= γ − β t2, where γ = 5.20 rad/s and β = 0.810 rad/s3 . calculate the an
Gnesinka [82]

Answer : The angular acceleration is \alpha=-\beta t=-0.810\text{ t}

Solution : Given,

\gamma=5.20rad/s

\beta=0.810rad/s^3

The given angular velocity equation is,

\omega_z(t)=\gamma-\beta t^2

At t = 0,    \omega_z(0)=\gamma

At t = t,      \omega_z(t)=\gamma-\beta t^2

Angular acceleration : It is defined as the rate of change of angular velocity with respect to time.

Formula used for angular acceleration :

\alpha=\frac{\omega_z(t)-\omega_z(0)}{t}

where,

\alpha = angular acceleration

\omega_z(t) = angular velocity at time 't'

\omega_z(0) = angular velocity at time '0'

t = time

Now put all the given values in this formula, we get the angular acceleration.

\alpha=\frac{(\gamma)-(\gamma-\beta t^2)}{t}

\alpha=-\beta t=-0.810\text{ t}

Therefore, the angular acceleration is \alpha=-\beta t=-0.810\text{ t}

5 0
3 years ago
Select all of the answers that apply. Without its atmosphere, Earth would be _____. warmer bombarded by meteorites similar to Ma
Papessa [141]
Without its atmosphere, Earth would be bombarded by meteorites, similar to mars, relatively lifeless. Without the atmosphere objects can just enter the atmosphere and cause serious harm to us, but with the atmosphere it basically reduces damage and shrinks it to size. Without the atmosphere earth would be like mars since it doesn't have a atmosphere. Without the atmosphere earth would be relatively lifeless since without air, us humans cant breathe so we will not survive.

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Translation: List at least 5 objects that were formerly made from another material and are now made from a polymer. Identify what polymer it is

Answer:

Five object now replaced with polymers

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2)TV cabinets. (polystyrene polymer)

3) composites for golf clubs. (carbon fibre reinforced polymer CFRP)

4) fibers for clothing and carpet. (acrylic and nylon)

5) foams for coffee cups (polystyrene)

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What kind of air pressure would you find in Bridgeport, Connecticut?
klasskru [66]

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