All categories

3 years ago

Water that soaks into Earth may become _____ under the surface.

Physics

2 answers:

user100 [1]3 years ago

5 0

A. deep water
That's the only answer i could get.
Free gucci

svlad2 [7]3 years ago

3 0

D. groundwater is the answer

You might be interested in

6. A 15 kg box is given an initial push so that it slides across the floor and comes to a stop.

Illusion [34]

Answer:

(a) Frictional force = 44.145 N

(b) Acceleration = -2.943 m/s²

(c) Distance covered = 1.529 m

Explanation:

Given:

Mass of the box is, $m=15\ kg$

Coefficient of friction is, $\mu =0.30$

Acceleration due to gravity is, $g=9.81\ m/s^2$

Normal force acting on the box is, $N=mg=(15)(9.81) = 147.15\ N$

(a)

Frictional force is given as:

$f=\mu N=0.30\times 147.15=44.145\ N$

Therefore, the frictional force is 44.145 N.

(b)

The acceleration of the box is given using Newton's second law as:

$a=-\frac{f}{m}=-\frac{44.145}{15}=-2.943\ m/s^2$

Therefore, the acceleration of the box is -2.943 m/s².

(c)

Initial velocity is, $u=3.0\ m/s$

Final velocity is, $v=0\ m/s$

Acceleration of the box is, $a=-2.943\ m/s^2$

The displacement of the box can be determined using equation of motion as:

$v^2=u^2+2ad\\0=3^2+2\times (-2.943)d\\0=9-5.886d\\5.886d=9\\d=\frac{9}{5.886}=1.529\ m$

Therefore, the displacement of the box is 1.529 m.

4 0

4 years ago

Why does the speed of sound waves change in different mediums?

andrezito [222]

The answer is solely based on the length of space between atoms. In gaseous mediums, atoms are generally quite far apart allowing waves to be undisrupted in the process. In solids and liquids, sound waves are trapped/diluted in the relatively close atom distances

8 0

4 years ago

An object has an acceleration of 6.0 m/s/s. If the net force was tripled and the mass were doubled, then the new acceleration wo

Mars2501 [29]

Answer:

The new acceleration would be 9 m/s².

Explanation:

Acceleration of an object is 6 m/s²

Net force is equal to the product of mass and acceleration i.e.

F = ma

$a=\dfrac{F}{m}\\\\\dfrac{F}{m}=6\ m/s^2$

If the net force was tripled and the mass were doubled, it means,

F' = 3F

m' = 2m

Let a' is new acceleration. So,

$a'=\dfrac{F'}{m'}\\\\a'=\dfrac{(3F)}{(2m)}\\\\a'=\dfrac{3}{2}\times \dfrac{F}{m}\\\\a'=\dfrac{3}{2}\times 6\\\\a'=9\ m/s^2$

So, the new acceleration would be 9 m/s².

4 0

4 years ago

What is kinetic energy related to?

mestny [16]

Answer:

Motion, or Temperature.

Explanation:

Kinetic Energy refers to energy expelled from moving, such as if you are going down a giant hill in a rollercoaster. Potential Energy refers to stored energy, or energy collected when you don't move. An example of this is right at the top of a rollercoaster, before you go down the giant hill.

Similarly, temperature is determined by the energy of moving molecules, or how fast they move.

6 0

3 years ago

Which ancient greek dude discovered sparks from amber

katrin [286]

Its Thales of Miletus

7 0

3 years ago