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
erastova [34]
2 years ago
11

A 222 N force is required to keep an object moving along a circular path with a diameter of 11.6 m at a speed of 7.60 m/s. What

is the mass of the object?
Chemistry
1 answer:
Arte-miy333 [17]2 years ago
7 0

Answer:

m=22.3\ kg

Explanation:

The expression for centrifugal force is shown below as:-

F=\frac{m\times v^2}{r}

Where, m is the mass of the object = ?

v is the velocity of the object = 7.60 m/s

r is the radius

F is the force = 222 N

Diamter = 11.6 m

Radius = d/2 = 11.6 m/2 = 5.8 m

Applying the values in the above expression as:-

222=\frac{m\times {7.60}^2}{5.8}

57.76m=1287.6

m=22.3\ kg

You might be interested in
A 3.0 L solution contains 73.5 g of H2SO4. Calculate the molar concentration of the solution.
kozerog [31]
C_{m}=\frac{m}{MV}=\frac{73,5g}{98\frac{g}{mol}*3L}=0,25M\\\\
C_{1}V_{1}=C_{2}V_{2}\\\\
0,25M*3L=0,18M*V_{2}\\\\
V_{2}=\frac{0,25M*3L}{0,18M}\approx 4,17L\\\\
4,17L-3L=1,17L
6 0
3 years ago
This is a material that allows heat/electricity to transfer.
Anvisha [2.4K]
A material that allows heat/electricity to transfer is called a conductor.
5 0
3 years ago
Read 2 more answers
PLSSSSS HEEEELP!!!!
Naily [24]
Following is the balanced <span>radioactive decay series:
</span><span>
Particle/radiations generated during the reaction are labeled in bold at end of reaction. 

Care must be taken that, atomic number and atomic mass number should be balanced in each of these reactions.

1) 92 238U </span>→ <span> 90 234Th + 2 4He(</span>α particle<span>)

A = </span>90 234Th because alpha particle is emitted along with it. So atomic number of daughter element has to be 92 - 2 = 90. This corresponds to Th. <span>

2) 90 234Th  </span>→<span> 91 234Pa + -1 0e (electron)

B = -1 0e i.e electron
 because after radioactive disintegration atomic number of daughter element (Pa) is +1 as compared to parent element (Th)


3) 91 234Pa  </span>→<span> 92 234U + –1 0e (electron)

</span>C = 92 234U because electron is emitted along with it. So atomic number of daughter element has to be 91 - (-1) = 92. This corresponds to U. <span>

4) 92 234U </span>→ 90 230Th + 2 4He (α particle<span>)

</span><span>In this case, 92 234U undergoes nuclear disintegration to generate 90 230Th and alpha particle

5) 90 230Th </span>→<span> 88 226Ra + 2 4He </span>(α particle)

D = 88 226Ra because alpha particle is emitted along with it. So atomic number of daughter element has to be 90 - 2 = 88. This corresponds to Ra. 

<span>6) 88 266Ra </span>→ 86 222Rn + 2 4He (α particle)

E = alpha particle because during nuclear disintegration, 88 266Ra is converted into 86 222Rn. Hence, for mass balance we have 88 - 86 = 2. It corresponds to alpha particles.
<span>
7) 86 222Rn </span>→<span> 84 218Po + 2 4He </span>(α particle)

Again, F = alpha particle because during nuclear disintegration, 86 222Rn is converted into 84 218Rn. Hence, for mass balance we have 86 - 84 = 2. It corresponds to alpha particles.
<span>
8) 84 218Po </span>→<span> 82 214Pb + 2 4He </span>(α particle)

G = 82 214Pb because alpha particle is emitted along with it. So atomic number of daughter element has to be 84 - 2 = 82. This corresponds to Pb.
<span>
9) 82 214Pb </span>→<span> 83 214Bi + -1 0e (electron)

H = </span>-1 0e because after radioactive disintegration atomic number of daughter element (Bi) is +1 as compared to parent element (Pb)<span>

10) 83 214Bi </span>→<span> 84 214Po + –1 0e (electron)

I = 
</span>84 214Po because electron is emitted along with it. So atomic number of daughter element has to be 83 - (-1) = 84. This corresponds to Po.<span>

11) 84 214Po </span>→<span> 82 210Pb + 2  4He </span>(α particle)

J = 82 210Pb because alpha particle is emitted along with it. So atomic number of daughter element has to be 84 - 2 = 82. This corresponds to Pb.
8 0
3 years ago
A solution is prepared by adding 0.0231moles of H3O+ ions to 3.33L of water. What is the pH of this solution
MrMuchimi

Answer:

2.15

Explanation:

For this question, we have to remember the <u>pH formula</u>:

pH~=~-Log[H_3O^+]

By definition, the pH value is calculated when we do the -Log of the concentration of the <u>hydronium ions</u> (H_3O^+). So, the next step is the calculation of the <u>concentration</u> of the hydronium ions. For this, we have to use the <u>molarity formula</u>:

M=\frac{mol}{L}

We already know the number of moles (0.0231 moles) and the volume (3.33 L). So, we can plug the values into the molarity formula:

M=\frac{0.0231~moles}{3.33~L}=0.00693~M

With this value, now we can calculate the pH value:

pH~=~-Log[0.00693~M]~=~2.15

<u>The pH would be 2.15</u>

I hope it helps!

8 0
2 years ago
What are the monomers of bakelite​
topjm [15]

Answer:

Bakelite is a polymer made up of the monomers phenol and formaldehyde. This phenol-formaldehyde resin is a thermosetting polymer.

8 0
3 years ago
Read 2 more answers
Other questions:
  • How does most of the water in the water cycle move from lakes and rivers directly back into the atmosphere?
    14·2 answers
  • The elements most likely to form more than type of ion are the....
    13·2 answers
  • Calculate the energy needed to raise the temperature of 18.0g of water from 10.0C to 40.0C. The specific heat of water is 4.18 J
    11·1 answer
  • How many moles of NaCl are present in 530 ml of a 1.52m NaCl solution
    10·1 answer
  • Can someone help me with this please!
    13·1 answer
  • How does your pattern of breathing change when you exercise and then rest ?​
    13·1 answer
  • What happens if someone let's go of the button on an electric door bell
    6·1 answer
  • PLEASE HELP! Find out whether the chemical equation is balanced or unbalanced.
    12·1 answer
  • PLEASEEE HELP !!!!<br><br> what physical changes might happen in the aquaponic system
    15·1 answer
  • Which statement is not true about the periodic table?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!