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
shusha [124]
3 years ago
8

A student designs an experiment where he takes a small wood car with 1.0 inch diameter wheels and rolls it down a ramp. The stud

ent measures the speed of the car when it reaches the bottom of the ramp. The student then takes a small plastic car with 1.5 inch diameter wheels and repeats the process. Finally, the student takes a small metal car with 2.0 inch diameter wheels and repeats the process a final time. The student notes that the metal car had the fastest speed at the bottom of the ramp.
The student can conclude:
Chemistry
2 answers:
aleksley [76]3 years ago
8 0
The metal car airodinamics with body style and weight increased speed
Anastaziya [24]3 years ago
3 0

Answer:

As the radius of a wheel , in rolling motion on a inclined plane, changes , its final speed , does not change . In other words , acceleration of wheel on inclined plane does not depend upon radius of the wheel . It also does not depend upon the mass of the wheel.

Explanation:

In case of perfect rolling on an inclined plane, the acceleration of body is given by the following expression.

a = g/1+k²/r² where k is known as radius of gyration . For a wheel its value is equal to( 1/√2)r.r is radius . From this expression , one can conclude that acceleration and therefore velocity does not depend upon radius of the wheel . Therefore the reason of the metal car having greatest speed  is the resistance of air and friction of surface being the least in its case.

You might be interested in
Allison is trying to identify the type of bacteria found on common surfaces like doorknobs, table tops, etc. For this experiment
strojnjashka [21]
She would use a microscope
8 0
2 years ago
Read 2 more answers
Can someone help, please ??
Bumek [7]
Concentrated I believe
8 0
2 years ago
Read 2 more answers
Is this molecule polar or nonpolar?
lutik1710 [3]
The answer is nonpolar  

3 0
2 years ago
Please answer 11 and 12, I'm not sure of my answers and I'm gonna be tested on this tomorrow. Thanks!
Novay_Z [31]
11. I would say physical because the color of the item is changed and the texture and density is changed aswell.
8 0
3 years ago
Solid lead IV oxide decomposes into solid lead and oxygen gas.
vredina [299]
The balanced equation for the decomposition of solid lead iv oxide is as follows: 2PbO2 = 2PbO + O2.
Lead IV oxide decompose to give lead ll oxide and oxygen. Lead iv oxide is thermally unstable and it usually decomposes into oxygen and lead ll oxide when heated. Lead ll oxide is more stable than lead lV oxide.
7 0
3 years ago
Other questions:
  • Identify the metal by comparison to table 2.4 in the textbook
    15·1 answer
  • How many moles of Ag can be produced if 350. g of Cu are reacted with excess AgNO3 according to the equation Cu(s) + 2AgNO3(aq)
    7·2 answers
  • In reaction a, each sodium atom gives one electron to a chlorine atom in reaction be an isotope of oxygen decays to form an isot
    13·1 answer
  • 8. Carbohydrates on cell membranes help cells
    14·1 answer
  • Beth is designing a business card
    6·2 answers
  • Which of the following concerning solutions is/are correct? 1. The solvent in a mixture of gases is generally considered to be t
    10·1 answer
  • calculate the mols of alt gas if the volume is 0.97 liters at a temperature of 12 C and the pressure is 152 Kpa’s
    11·1 answer
  • ¿que ocurre con el electrón de Valencia del K+ en el compuesto bromuro de potasio KBr​
    5·1 answer
  • PLZ HELP<br> what is the amount of atoms in this formula Ca3(Po4)Ba12OH5Cl2
    14·1 answer
  • (2 KClO3 (s) → 2 KCl (s) + 3 O2 (g) ) If 165 mL of oxygen is produced at 30.0 °C and 90.0 kPa, what mass of KClO3 was decomposed
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!