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3 years ago

3) Ęplain why muddy water is Heterogeneous mixture

Physics

1 answer:

nataly862011 [7]3 years ago

7 0

Answer:

muddy water is a heterogeneous mixture, which is Suspension.

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1 point

bearhunter [10]

Answer:

0 is your answereeeeerrrrr

5 0

3 years ago

Find a numerical value for ρearth, the average density of the earth in kilograms per cubic meter. use 6378km for the radius of t

Andre45 [30]

Answer:

5501 kg/m^3

Explanation:

The value of g at the Earth's surface is

$g=\frac{GM}{R^2}=9.70 m/s^2$

where G is the gravitational constant

M is the Earth's mass

$R=6378km = 6.378 \cdot 10^6 m$ is the Earth's radius

Solving the formula for M, we find the value of the Earth's mass:

$M=\frac{gR^2}{G}=\frac{(9.81 m/s^2)(6.378\cdot 10^6 m)^2}{6.67\cdot 10^{-11}}=5.98\cdot 10^{24}kg$

The Earth's volume is (approximating the Earth to a perfect sphere)

$V=\frac{4}{3}\pi r^3 = \frac{4}{3}\pi (6.378\cdot 10^6 m)^3=1.087\cdot 10^{21} m^3$

So, the average density of the Earth is

$\rho = \frac{M}{V}=\frac{5.98\cdot 10^{24} kg}{1.087\cdot 10^{21} m^3}=5501 kg/m^3$

4 0

4 years ago

Read 2 more answers

Tory has a mass of 40kg. She sleds down a hill that has a slope of 25 degrees. what is the component of her weight that is along

Fudgin [204]

1.7 x 10^2 N

or 166 N

First you find the vertical component of the weight, which is 9.8*40, (g*m), which is 392 N. You then find the angle between that and the slope, which is 90-25, which is 65. You then multiply the vertical weight by cos(65), to find the component of that that is parallel to the slope. You get 165.666 N

3 0

4 years ago

How much dirt is there in a hole 3 feet deep, 6 ft long and 4 ft wide?

katrin [286]

V = l x w x h
v = 3 x 6 x 4
v = 72

5 0

3 years ago

In the election for class president Rachel received 60 votes and lucas received 10 votes. What is the ratio of the number of vot

Vedmedyk [2.9K]

Answer:

1:7 or 10:70

Explanation:

Lucas gets 10 votes out of the total of 70 votes (Lucas+Rachel votes)

5 0

4 years ago