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
Gnom [1K]
3 years ago
15

a rope breaks when the tension reaches 305N what is the largest largest mass it can swing at 14.2m/s in a circle of radius 0.425

m?(unit=kg)
Chemistry
1 answer:
Iteru [2.4K]3 years ago
6 0

Answer:

0.643 kg

Explanation:

Apply Newton's second law to the mass:

∑F = ma

T = m v² / r

305 N = m (14.2 m/s)² / 0.425 m

m = 0.643 kg

You might be interested in
In which state of matter are the particles least able to move?
amid [387]
The solid state where particles are more compact
3 0
3 years ago
What is cloud ? How does it affect on weather ?​
Lapatulllka [165]

Clouds are xondense form of water vapour over dust particles present in the upper atmosphere.

It effects the weather as when the clouds get heavy they get precipitate in the form pf rain, snow, hail. because of these factors temperature goes down and make us feel cold.

HOPE THIS WILL HELP U

7 0
3 years ago
Read 2 more answers
A solid and a liquid are shaken together in a test tube to produce a clear blue liquid. Which of the following best describes th
harkovskaia [24]
<span>the behavior of the above pair of substances</span> is soluble

6 0
3 years ago
How many grams of aluminum are required to react with 35 mL of 2.0 M hydrochloric acid, HCl?__ HCl + __ Al --&gt; __ AlCl3 + __
kiruha [24]

Answer:

0.6258 g

Explanation:

To determine the number grams of aluminum in the above reaction;

  • determine the number of moles of HCl
  • determine the mole ratio,
  • use the mole ratio to calculate the number of moles of aluminum.
  • use RFM of Aluminum to determine the grams required.

<u>Moles </u><u>of </u><u>HCl</u>

35 mL of 2.0 M HCl

2 moles of HCl is contained in 1000 mL

x moles of HCl is contained in 35 mL

x \: mol \:  =  \:  \frac{2 \:  \times  \: 35}{1000}  \\  = 0.07 \: moles \:

We have 0.07 moles of HCl.

<u>Mole </u><u>ratio</u>

  • Balanced equation

6HCl(aq) + 2Al(s) --> 2AlCl3(aq) + 3H2(g)

Hence mole ratio = 6 : 2 (HCl : Al

  • but moles of HCl is 0.07, therefore the moles of Al;

=  \frac{2}{6}  \times 0.07 \\  \:  = 0.0233333 \: moles

Therefore we have 0.0233333 moles of aluminum.

<u>Grams of </u><u>Aluminum</u>

We use the formula;

grams \:  = moles \:  \times  \: rfm

The RFM (Relative formula mass) of aluminum is 26.982g/mol.

Substitute values into the formula;

= 0.0233333 \: moles  \:  \times  \: 26.982 \:  \frac{g}{mol}  \\  = 0.625799 \: grams

The number of grams of aluminum required to react with HCl is 0.6258 g.

3 0
2 years ago
An archaeologist discovered some charcoal at an excavation site. He sent the samples to a lab for C-14 dating, knowing that the
klio [65]
Here we assume that disintegration has occur so the normal t½ formular will not be used
mathematically we..⅛×5600 =700
therefore it is about 700years option A
7 0
2 years ago
Other questions:
  • Identify the spectator ions in the following molecular equation.
    13·1 answer
  • 1) The spectrum of lithium has a red line of 670.8 nanometers. (Remember 1 m = 1 X 109 nm) a. Convert the nanometer to meter usi
    7·1 answer
  • Distillation is the process of separating liquids by using
    11·2 answers
  • SUBMIT
    9·1 answer
  • What is solubility ?
    5·1 answer
  • What is the molarity of a solution prepared by dissolving 1.56 g of gaseous hcl (molar mass = 36.5 g into enough water to make 2
    14·1 answer
  • The mass of a 50-mL volumetric flask is 40.638
    9·1 answer
  • Identifi the atom<br><br>He <br><br>O<br><br>Ne<br><br>Na​
    10·1 answer
  • How many valence electrons does group 18 have
    6·2 answers
  • Help me real quick !!
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!