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
Anestetic [448]
1 year ago
9

A student wants to determine the effect of mass on kinetic energy. She will drop two balls of the same size into a pool of water

. Which investigation method should the student use?(1 point)
a. She should drop two balls of the same mass from different Hights.
b.she should drop two balls with different masses from the same Hights
c.she should drop two balls with different masses from different Hights
d.she should drop two balls of the same mass from the same Hights
Chemistry
2 answers:
Elenna [48]1 year ago
8 0
I think the answer is C
Aliun [14]1 year ago
8 0
I believe the correct answer is B. Not only because she wants to test different masses but dropping it for the same hight is the correct way to preform an experiment
You might be interested in
A sample of water and alcohol are mixed. What method should be used to separate them?
Margaret [11]

Fractional Distillation is the answer


6 0
3 years ago
Scientists think the earth is approximately how old?
tiny-mole [99]

I think the answer is approximately 4.12 billion years since the amount of years is 4.543 billion years

6 0
3 years ago
Read 2 more answers
Calculate the new boiling point of a solution if 10.00 g of a non-ionizing compound (C3H5(OH)3) is dissolved in 90.00 g of H2O.
erma4kov [3.2K]

Answer:

Boiling T° of solution = 100.6

Explanation:

Formula for elevation of boiling point is:

ΔT = Kb . m . i

where ΔT means Boiling T° of solution - Boiling T° of pure solvent

Our solute is a non ionizing compound.

i = 1, because it is a non ionizing compound. i, indicates the ions dissolved in solution.

m = molality (moles of solute dissolved in 1 kg of solvent)

90 g of solvent = 0.09 kg of solvent

We convert mass of solute to moles (by the molar mass):

10 g . 1 mol /92.09 g = 0.108 moles

m = 0.108 mol /0.09 kg = 1.21 m

Let's replace data: Boiling T° of solution - 100°C = 0.51 °C/m . 1.21 m . 1

Boiling T° of solution = 0.51 °C/m . 1.21 m . 1 + 100°C

Boiling T° of solution = 100.6

5 0
3 years ago
What is the pH of a solution with a concentration of 4.7 × 10-4 molar H3O+?
wlad13 [49]
The pH of a liquid substance is calculated through the equation,
                                       pH = -log[H3O+]
Substituting the given concentration of the hydronium ion to the equation above,
                                        pH = -log[4.7x10^-4 M]
The value of pH is equal to 3.33. Thus, the pH of the solution is approximately 3.33. 
3 0
3 years ago
What happens to water during evaporation?
kotegsom [21]
D would be your best bet because evaporation occurs when water is heated, it then vibrates and then magic!
5 0
3 years ago
Read 2 more answers
Other questions:
  • All synthetic materials ultimately come from
    14·1 answer
  • Suppose you have an aqueous solution containing 158.2 g KOHper
    11·1 answer
  • Acellus<br> How many grams of strontium<br> (Sr, 87.62 g/mol) are in 2.92<br> moles of strontium?
    9·1 answer
  • What is the electron configuration using core notation for Ca2+?
    14·1 answer
  • Which group of elements would generally have the
    12·2 answers
  • Write a formula and balanced equation for the following: solid copper metal reacts with aqueous silver nitrate to produce solid
    8·1 answer
  • What makes a metal and a non metal most
    10·1 answer
  • Convert 50 gr of water into moles and into molecules of H2O.
    10·1 answer
  • Explain how Milankovitch cycles can be used to predict future changes in Earth's climate
    11·1 answer
  • at 298 k the H+ ion concentration of a aqueous solution is 1.00 x 10-5 M what is the pH of the solution
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!