All categories

3 years ago

Soils refers to natural material from the earth, but not artificial material (like AstroTurf or asphalt). True False

Physics

2 answers:

Lelu [443]3 years ago

6 0

Answer:

It is true that Soil refers to natural material from the earth, but not artificial material (like AstroTurf or asphalt).

Artificial materials are the materials that are made by human like AstroTurf or asphalt while Soil is one of the natural materials giving to us by God. Soil is a material composed of five ingredients which are minerals, soil organic matter, living organisms, gas, and water.

adelina 88 [10]3 years ago

4 0

Answer:

It's False

Explanation:

i just took the test

You might be interested in

if a ball dropped from the top of a building takes 8.2 seconds to hit the ground, how tall is the building?

fgiga [73]

Answer:

This really depends on the size of the ball and if the ball is going straight down or at a diagonal angle

Explanation:

7 0

3 years ago

Derek runs 4 laps around the track. If each lap around the track is 0.25 miles long, and he starts and stops in the same locatio

Sergeeva-Olga [200]

1.00 1 mile 1 mile 1.00

5 0

3 years ago

Read 2 more answers

The smallest shift you can reliably measure on the screen is about 0.2 grid units. This shift corresponds to the precision of po

creativ13 [48]

Answer:

The distance is $d = 1.5 *10^{15} \ km$

Explanation:

From the question we are told that

The smallest shift is $d = 0.2 \ grid \ units$

Generally a grid unit is $\frac{1}{10}$ of an arcsec

This implies that 0.2 grid unit is $k = \frac{0.2}{10} = 0.02 \ arc sec$

The maximum distance at which a star can be located and still have a measurable parallax is mathematically represented as

$d = \frac{1}{k}$

substituting values

$d = \frac{1}{0.02}$

$d = 50 \ parsec$

Note $1 \ parsec \ \to 3.26 \ light \ year \ \to 3.086*10^{13} \ km$

So $d = 50 * 3.08 *10^{13}$

$d = 1.5 *10^{15} \ km$

3 0

3 years ago

Write your question here (Keep it simple and clear to get the best answer) a car accelerates uniformly from an initial velocity

Fittoniya [83]

Answer:

Average velocity = 18 m/s

Explanation:

Given the following data;

Initial velocity = 10m/s

Acceleration = 2m/s²

Time = 4 seconds

To find the average velocity, we would use the first equation of motion;

$V = U + at$

Where;

V is the final velocity.

U is the initial velocity.

a is the acceleration.

t is the time measured in seconds.

Substituting into the equation, we have;

V = u + at

V = 10 + 2*4

V = 10 + 8

V = 18 m/s

8 0

2 years ago

What is the unit for work is called

emmasim [6.3K]

Answer:

The unit you should use for work done and energy is the joule (J) which is indeed the same as the newton metre (N m).

There is another physical quantity which is the product of force and distance and that is torque or moment of a force.

The unit you should use for torque is the newton metre (Nm) and not the joule.

Naming the units of work done and torque differently helps to emphasis the fact that work done and torque refer to two different physical quantities although the definitions of both quantities have the product of force and distance in them.

work done=force→⋅displacement→ and torque→=force→×displacement→

Hope I helped

4 0

3 years ago