All categories

3 years ago

INTEGRATED SCIENCE-8th grade science Please help report cards are due for me at dec.18

Physics

1 answer:

serious [3.7K]3 years ago

7 0

Answer:

Our drinking water comes from lakes, rivers and groundwater. For most Americans, the water then flows from intake points to a treatment plant, a storage tank, and then to our houses through various pipe systems. A typical water treatment process.

Explanation:

You might be interested in

How can the rate of a reaction be increased?

xeze [42]

I think it is D- diluting a solution sorry if i am wrong

7 0

3 years ago

The mass of an object with 500 J of kinetic energy moving with a velocity of 5 m/s is

Ann [662]

40kg

Explanation:

Given parameters:

Kinetic energy = 500J

Velocity = 5m/s

Unknown:

Mass of the object = ?

Solution:

Kinetic energy is the energy due to motion of a body. It is expressed as:

K.E = $\frac{1}{2}$ mv²

m is the mass of the body

v is the velocity

To find the mass, make it the subject of the expression:

m = $\frac{2 K.E}{v[tex]^{2}$ }[/tex]

m = $\frac{2 x 500}{5[tex]^{2}$ }[/tex] = 40kg

Learn more:

Kinetic energy brainly.com/question/6536722

#learnwithBrainly

4 0

4 years ago

Gasoline burns in the cylinder of an automobile engine. During the combustion reaction, the production of gas forces the piston

serg [7]

Answer:

$\Delta U = 1640 J$

Explanation:

As we know by first law of thermodynamics that for ideal gas system we have

Heat given = change in internal energy + Work done

so here we will have

Heat given to the system = 2.2 kJ

Q = 2200 J

also we know that work done by the system is given as

$W = 560 J$

so we have

$\Delta U = Q - W$

$\Delta U = 2200 - 560$

$\Delta U = 1640 J$

6 0

3 years ago

A man can walk three blocks east and four blocks north in 20 min. He can drive 12 times that distance in the same amount of time

skad [1K]

Answer: 25.2 km

<u>Explanation:</u>

3 blocks east and four blocks east = 7 blocks

1 block = 0.3 km --> 7 blocks = 2.1 km

12 times 2.1 km = 25.2 km

4 0

3 years ago

What do you think causes the rising and sinking of molten rock in the mantle?

Svet_ta [14]

Answer:

Heyyy hope this helps

Convection currents describe the rising, spread, and sinking of gas, liquid, or molten material caused by the application of heat.

3 0

3 years ago