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
AysviL [449]
3 years ago
15

Why aren’t descriptive investigations repeatable

Physics
1 answer:
zzz [600]3 years ago
8 0
It involves questions but it doesn't involve hypothesis. So we are still trying to find info by asking the question, and it's also a waste of time asking the question over and over, because the hypothesis wasn't formulated yet so that's why they are not repeatable.

Hope this helps!
You might be interested in
Which qualifications are typical for a Manufacturing career? Check all that apply.
kicyunya [14]
D should be the answer
8 0
3 years ago
The moon's surface gravity is one-sixth that of the earth. Calculate the weight on the moon of an object that has a mass of 24 k
ad-work [718]
When we say "<span>The moon's surface gravity is one-sixth that of the earth.",
we mean that the acceleration of gravity on the Moon's surface is 1/6 of
the acceleration of gravity on the Earth's surface.

The acceleration of gravity is (9.8 m/s</span>²) on the Earth's surface, so
<span>it would be (9.8/6 m/s</span>²) on the Moon's surface.
<span>
The weight of any object, right now, is

(object's mass) </span>· (acceleration of gravity where the object is located now) .
<span>
If the object's mass is 24 kg and the object is on the Moon right now,
then its weight is 

(24 kg) </span>· (9.8/6 m/s²)

= (24 · 9.8 / 6) kg-m/s²

= 39.2 Newtons
7 0
3 years ago
Question 5 (2 points)
Radda [10]

Answer:

Increase the work being done or decrease the time in which the work is completed

Explanation:

I got it right on the quiz i just took :)

5 0
3 years ago
A 50.0 N box sliding on a rough horizontal floor, and the only horizontal force acting on it is friction. You observe that at on
Vikki [24]

Answer:

-4.0 N

Explanation:

Since the force of friction is the only force acting on the box, according to Newton's second law its magnitude must be equal to the product between mass (m) and acceleration (a):

F_f = ma (1)

We can find the mass of the box from its weight: in fact, since the weight is W = 50.0 N, its mass will be

m=\frac{W}{g}=\frac{50.0 N}{9.8 m/s^2}=5.1 kg

And we can fidn the acceleration by using the formula:

a=\frac{v-u}{t}

where

v = 0 is the final velocity

u = 1.75 m/s is the initial velocity

t = 2.25 s is the time the box needs to stop

Substituting, we find

a=\frac{0-1.75 m/s}{2.25 s}=-0.78 m/s^2

(the acceleration is negative since it is opposite to the motion, so it is a deceleration)

Therefore, substituting into eq.(1) we find the force of friction:

F_f = (5.1 kg)(-0.78 m/s^2)=-4.0 N

Where the negative sign means the direction of the force is opposite to the motion of the box.

6 0
3 years ago
Which tagline from a car advertisement has the BEST connotative appeal to the parents of a new teenage driver?
Nonamiya [84]
A.  Advanced new safety features that get everyone home at night.  
6 0
3 years ago
Other questions:
  • The Hubble Space Telescope (HST) orbits 569 km above Earth’s surface. If HST has a tangential speed of 7,750 m/s, how long is HS
    8·2 answers
  • A parallel plate capacitor is charged up by a battery. The battery is then disconnected, but the charge remains on the plates. T
    9·1 answer
  • A 0.150 kg baseball has 118 j of KE. how fast is the ball moving?(unit=m/s)
    7·1 answer
  • A ball of mass 4.5 kg moving with speed of 2.2 m/s in the +x-direction hits a wall and bounces back with the same speed in the x
    7·1 answer
  • A bear, searching for food wanders 35.0 meters east then 20.0 meters north. Calculate the angle of the bear's displacement (w/re
    5·1 answer
  • Help please
    14·2 answers
  • If a 4 engine jet accelerates down a runway at 8.7 m/s^2, Suppose now that all 4 engins are operational on the jet from the prev
    13·1 answer
  • Which of the following is an example of acceleration?
    14·2 answers
  • Need some help !!!!!!!!!
    5·2 answers
  • WHAT IS THE NET FORCE (CENTRIPETAL FORCE) FOR A 1500 KG
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!