3 years ago

Use dominant trait in a sentence

1 answer:

4 0

Because my dad had the dominant gene for brown hair, while my mom had the recessive gene, I now have brown hair.

Hope this helped! Good luck! :)

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A 1.0-kg block of aluminum is at a temperature of 50 Celsius. How much thermal energy will it lose when it’s temperature is redu

Ipatiy [6.2K]

Answer:

The lose of thermal energy is, Q = 22500 J

Explanation:

Given data,

The mass of aluminium block, m = 1.0 kg

The initial temperature of block, T = 50° C

The final temperature of the block, T' = 25° C

The change in temperature, ΔT = 50° C - 25° C

= 25° C

The specific heat capacity of aluminium, c = 900 J/kg°C

The formula for thermal energy,

= 1.0 x 900 x 25

= 22500 J

Hence, the lose of thermal energy is, Q = 22500 J

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3 years ago

True or False: A cross product is an equation which states that two ratios are equal.

elena-14-01-66 [18.8K]

I think the answer would be false

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2 years ago

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2. What is the smallest particle into which an

just olya [345]

Explanation:

atommmmmmmmmmmmmmmmmmmmm

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2 years ago

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A scientist makes a device to catch baseballs. A long bar of total mass 2.2kg and length 1.2m is fixed at its center. It catches

Valentin [98]

Answer:

ωf = 4.53 rad/s

Explanation:

By conservation of the angular momentum:

Ib*ωb = (Ib + Ic)*ωf

Where

Ib is the inertia of the ball

ωb is the initial angular velocity of the ball

Ic is the inertia of the catcher

ωf is the final angular velocity of the system

We need to calculate first Ib, Ic, ωb:

$Ib = mb*(L/2)^2=0.15*(1.2/2)^2=0.054 kg.m^2$

$Ic = mc/12*L^2=2.2/12*1.2^2=0.264 kg.m^2$

ωb = Vb / (L/2) = 16 / (1.2/2) = 26.67 m/s

Now, ωf will be:

$\omega f = \frac{Ib*\omega b}{Ib + Ic} = 4.53rad/s$

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2 years ago

What's the distance between earth and Saturn?

PilotLPTM [1.2K]

Answer:

the answer is 996.39 million miles

from Earth to Saturn

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2 years ago

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