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2 years ago

5

A change in a populations genes from one generation to the next due to chance or accident is refrerred as a

1 answer:

Step2247 [10]2 years ago

6 0

I think it’s evolution?

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Ball A was carried to the top of a hill in a straight line, while ball B was carried in a longer, zigzag path. At the top of the

marissa [1.9K]

Answer: equal

Explanation:

Don’t know why honestly

5 0

2 years ago

Read 2 more answers

What are examples of chemical energy

klio [65]

-- the big flash of light and heat coming out of the head
of a match when it gets hot enough;

-- the explosion of a tiny bit of gunpowder that can send
a bullet many miles;

-- the energy captured from a few drops of burning gasoline
that moves a car;

-- the energy in the carbohydrates you eat that is used
to move you around;

3 0

2 years ago

a chamber with a fixed volume of 1.0 meters cubed contains a monatomic gas at 3.00 *10^K. The chamber is heated to a temperature

igomit [66]

Answer:

Explanation:

Given

Volume of fixed chamber $V=1 m^3$

Initial Temperature $T_1=300 K$

Final Temperature $T_2=400 K$

Heat Supplied $Q=10 J$

From First law of thermodynamics

Change in internal energy of the system is equal to heat added minus work done by the system

$\Delta U=Q-W$

as the volume is fixed therefore work

$W=\int PdV=0$

thus $\Delta U=mc_v\Delta T=Q$

$c_v$ for mono-atomic gas is $12.471 J/K-mol$

$n\times 12.471\times (400-300)=10$

$n=0.008018 mol$

and 1 mole contains $6.022\times 10^{23} molecules$

thus No of molecules $=0.008018\times 6.022\times 10^{23}$

No of molecules $=4.82\times 10^{21} molecules$

3 0

2 years ago

A non-_____ rock has interlocking grains with no specific pattern.

Kazeer [188]

A non <span>foliated </span>rock has interlocking grains with no specific pattern.

3 0

3 years ago

Read 2 more answers

A small airplane takes on 302 l of fuel. If the density of the fuel is 0.821 g/ml, what mass of fuel has the airplane taken on?

ella [17]

To calculate the mass of the fuel, we use the formula

$m = V \times \rho$

Here, m is the mass of fuel, V is the volume of the fuel and its value is $V =302 \ L = 302 \ L \times \frac{10^{3}m L }{L} = 302 \times 10^{3} \ mL$ and $\rho$ is the density and its value of 0.821 g/mL.

Substituting these values in above relation, we get

$m = 302 \times 10^{3} \ mL \times 0.821 g/mL = 247942 g \\\\ m = 247. 94 \ kg$

Thus, the mass of the fuel 247 .94 kg.

8 0

2 years ago