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
zzz [600]
3 years ago
5

Why do scientists conduct experiments ?

Physics
1 answer:
kkurt [141]3 years ago
8 0
Scientists conduct experiments in order to prove a theory or a prediction they have or contradict it, so that then they can write down their results to study them.
You might be interested in
You are sitting on a deck of your house surrounded by oak trees. You hear the sound of an acorn hitting the deck. You wonder if
Black_prince [1.1K]

Answer: 96N

Explanation:

To calculate the velocity of the impact On the persons head, we have

h = gt²/2

14 = 9.81t²/2

t² = 28/9.8

t² = 2.86

t = 1.69s

V = u + at

V = 0 + 9.81*1.69

V = 16.58m/s

a(average) = (v1² + v2²) /2Δy

a(average) = 16.58² + 0)/2 * 0.005

a(average) = 274.8964/0.01

a(average) = 27489.64m/s²

Using newton's second law of motion,

F(average) = m * a(average)

F(average) = 0.0035 * 27489.64

F(average) = 96.21N

Therefore the force needed by the acorn to do much damage starts from 96N

8 0
3 years ago
Groups of students are making measurements of small cars rolling across a table. the class has measuring tapes with markings in
TiliK225 [7]

To find the accurate measurement of small cars, the teacher asks students to make all the measurements in centimeters.

Centimeters Measurements:

  • A centimeter is a metric unit of measurement used for measuring the length of an object, It is written as cm
  • Centimeter is one hundredth of a meter, 1 meter is 0.01 cm.

Inches measurements:

  • An inch can be defined as a unit of length in the customary system of measurement. Length in inches is either represented by in or ''.
  • 1 meter is equal to 39.37 inches

here, the cars are small objects.

The number of centimeters is always bigger,

because a centimeter unit is smaller than an inch unit, and it takes more of them when we are measuring.

Hence,

To find the accurate measurement of small cars, the teacher asks students to make all the measurements in centimeters.

Learn more about accurate measurement here:

<u>brainly.com/question/4119127</u>

<u />

#SPJ4

4 0
2 years ago
8. A meter reader determines that a business has used 5000 kW.h of energy in 4 months. If
ladessa [460]

Answer:

ENERGY AND COST. One kllowatt hour is 1,000 watts of power for one hour of time. ... Determine power: P = V XI ... Calculate the total kilowatt hours used. ... If the electric costs are 150 per kWh, how much does it cost to run the refrigerator in ... 8. A room was lighted with three 100-watt bulbs for 5 hours per day. If the cost of.

Explanation:

7 0
2 years ago
a object with a mass of 70 kilograms is supported at a height 8 meters above the ground.what's the potential energy of the objec
Agata [3.3K]
Potential Energy = mgh,

where m = mass in kg,  g ≈ 10 m/s², h = height above ground = 8 m

PE = mgh
  
      = 70*10*8 = 5600 J

7 0
3 years ago
Explain why a moving object cannot come to a stop instantly in zero seconds
sineoko [7]
Well because it has momentum and it needs to be slowed down.
7 0
3 years ago
Read 2 more answers
Other questions:
  • The main difference between speed and velocity involves
    13·1 answer
  • Have scientists discovered a fifth fundamental force of nature?
    8·1 answer
  • What is the mass of a plastic spoon
    14·2 answers
  • the average time required for radioactive elements, whereby they decay to half their original mass is called the "average life"
    10·2 answers
  • a 55 kg baseball player slides into third base with an initial speed of 4.6 m/s If the coefficient of kinetic friction between t
    14·1 answer
  • Could I get help on this question please
    6·1 answer
  • This is a problem about a child pushing a stack of two blocks along a horizontal floor. The masses of the blocks, and the coeffi
    13·1 answer
  • 6X-6=9<br><br> Solve for X<br><br> Round to TWO decimal places
    12·1 answer
  • A star with a mass like the Sun which will soon die is observed to be surrounded by a large amount of dust and gas -- all materi
    13·1 answer
  • This diagram shows a hydrogen atom. Explain why it looks<br> like it does
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!