1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
IRINA_888 [86]
3 years ago
7

A descriptive investigation is a type of _____.

Physics
2 answers:
denpristay [2]3 years ago
8 0
It’s D or B Because investigation is some tho ur studying or experiment to know the final result Most likely D it’s not a or c
Lesechka [4]3 years ago
6 0
D because i took this test already and i got it correct so you should too
You might be interested in
An atom containing 16 protons, 31 neutrons, and 16 electrons would have an atomic mass of
Eddi Din [679]
<span>47 amu is the correct answer</span>
7 0
2 years ago
Read 2 more answers
Two points charges are brought closer together,increasing the force between them by a factor of 25.By what factor wa their separ
Roman55 [17]

Answer:

The separation between the charges was decreased by a factor of 0.2

Explanation:

The Coulomb's force between two charges is given by;

F = \frac{kq^2}{r^2} \\\\let \ kq^2 \ be \ constant\\\\F_1r_1^2 = F_2r_2^2\\\\r_2^2 = \frac{F_1r_1^2}{F_2} \\\\increasing \ the \ force \ between \ them \ by \ factor \ of \ 25\\\\(F_2 = 25F_1)\\\\r_2^2 = \frac{F_1r_1^2}{25F_1}\\\\r_2^2 = \frac{r_1^2}{25}\\\\r_2 = \sqrt{\frac{r_1^2}{25} }\\\\ r_2 = \frac{r_1}{5}

r₂ = 0.2r₁

Therefore, the separation between the charges was decreased by a factor of 0.2.

6 0
3 years ago
About 80 percent of earth volume is made up of what?
kolbaska11 [484]
About 80% of the earth's volume is made of mantle.


 <span>The </span>mantle<span> is a layer inside a </span>terrestrial planet<span> and some other </span>rocky planetary bodies<span>. For a mantle to form, the planetary body must be large enough to have undergone the process of </span>planetary differentiation<span> by </span>density<span>. The mantle lies between the </span>core<span> below and the </span>crust<span> above. The terrestrial planets (</span>Earth<span>, </span>Venus<span>, </span>Mars<span> and </span>Mercury<span>), the </span>Moon<span>, two of </span>Jupiter<span>'s </span>moons<span> (</span>Io<span> and </span>Europa<span>) and the </span>asteroid Vesta<span> each have a mantle made of </span>silicate<span> rock.</span><span>Interpretation of spacecraft data suggests that at least two other moons of Jupiter (</span>Ganymede<span> and </span>Callisto<span>), as well as </span>Titan<span> and </span>Triton<span> each have a mantle made of </span>ice<span> or other </span>solid volatile<span> substances </span>up of Mantle

Hope this helped.
4 0
2 years ago
Read 2 more answers
Molecules at room temperature move freely. What happens to the molecules when heat is removed until it freezes?
QveST [7]

molecules group together

3 0
3 years ago
A wave on the ocean surface with wavelength 44 m travels east at a speed of 18 m/s relative to the ocean floor. If, on this stre
inessss [21]

Answer:

A)t=<u>1.375s</u>

B)t=11s

Explanation:

for this problem we will assume that the east is positive while the west is negative, what we must do is find the relative speed between the wave and the powerboat, and then with the distance find the time for each case

ecuations

V=Vw-Vp  (1)

V= relative speed

Vw= speed of wave

Vp=Speesd

t=X/V(2)

t=time

x=distance=44m

A) the powerboat moves to west

V=18-(-14)=32m/s

t=44/32=<u>1.375s</u>

B)the powerboat moves to east

V=18-14=4

t=44/4=<u>11s</u>

3 0
2 years ago
Other questions:
  • What is the magnitude of the electric force of attraction between an iron nucleus (q = +26e) and its innermost electron if the d
    15·1 answer
  • Which statement correctly compares the speed of light
    15·2 answers
  • A mother and father have two daughters. The daughters have some similar and some different physical features. Which statement be
    10·2 answers
  • A professional golfer hits a golf ball of mass 46 g with her 5-iron, and the ball first strikes the ground 155 m away. The ball
    12·1 answer
  • What is the difference between accurate data and reproducible data?
    11·2 answers
  • An inverse-time circuit breaker (CB) is used for branch-circuit short-circuit and ground-fault protection for a 30-horsepower, 2
    15·1 answer
  • If an object is NOT accelerating, then one knows for sure that it is ___.
    5·1 answer
  • Catherine gently pushes the tip of her finger against the eraser of her pencil and the pencil does not move. Which of the follow
    6·2 answers
  • Which list places the layers of the sun in the correct order from outermost to innermost?
    12·1 answer
  • You work at a retail store. Recently, paychecks have had errors and there have been many employee complaints. You have been assi
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!