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
yulyashka [42]
3 years ago
8

1) Your nephew rides a kiddy train at the local carnival. The train, which has

Chemistry
1 answer:
katrin [286]3 years ago
6 0
<h3>Answer:</h3>

Velocity is 1 m/s

<h3>Explanation:</h3>

<u>We are given;</u>

  • Mass of the kiddy train is 1000 kg
  • Radius of the curve is 5.0 m
  • Centripetal force is 2000 N

We are required to determine the maximum speed of the train.

  • Centripetal force refers to the force experienced by an object in a circular motion towards the center of a circular path.
  • It is calculated by the formula;
  • Fc=\frac{Mv^{2} }{r}, where m is the mass, v is the velocity and r is the radius of the circular path.
  • Therefore, using the formula we can find the maximum speed.
  • Rearranging the formula;

v=\sqrt{\frac{Fc.r}{m} }

  • Therefore;

v=\sqrt{\frac{(2000N)(5.0m)}{1000kg} }

v=\sqrt{1}

v=1m/s

Therefore, the maximum speed of the train is 1 m/s

You might be interested in
A student obtains the following data: Mass of empty, dry graduated cylinder: 21.577 g Volume added of NaCl solution: 4.602 mL Ma
klasskru [66]

<u>Answer:</u> The density of NaCl solution is 3.930 g/mL

<u>Explanation:</u>

We are given:

Mass of cylinder, m_1 = 21.577 g

Mass of NaCl and cylinder combined, M = 39.664 g

Mass of NaCl, m_2 = (M-m_1)=(39.664-21.577)g=18.087g

To calculate density of a substance, we use the equation:

\text{Density of substance}=\frac{\text{Mass of substance}}{\text{Volume of substance}}

We are given:

Mass of NaCl = 18.087 g

Volume of NaCl solution = 4.602 mL

Putting values in above equation, we get:

\text{Density of NaCl}=\frac{18.087g}{4.602mL}\\\\\text{Density of NaCl}=3.930g/mL

Hence, the density of NaCl solution is 3.930 g/mL

7 0
2 years ago
Which of the following is the best explanation for the trend in the graph?
morpeh [17]

Answer:

it is the only one going up

Explanation:

3 0
3 years ago
Iodine-131 is a radioactive isotope that is used as a medical tracer to study and treat the thyroid gland. This radioactive elem
4vir4ik [10]
Bonjeur monseur, la french are here! it seems you have a problem with the elements on earth. lead seems correct since it is indeed a harmful material
8 0
3 years ago
The molar solubility of magnesium carbonate is 1.8 × 10–4 mol/l. What is ksp for this compound?
Serhud [2]

Answer:

3.2 × 10⁻⁸

Explanation:

Let's consider the solution of magnesium carbonate.

MgCO₃ ⇄ Mg²⁺(aq) + CO₃²⁻(aq)

We can relate the molar solubility (S) with the solubility product (Ksp) using an ICE chart.

         MgCO₃ ⇄ Mg²⁺(aq) + CO₃²⁻(aq)

I                             0                0

C                          +S              +S

E                            S                S

The Ksp is:

Ksp = [Mg²⁺] × [CO₃²⁻] = S × S = S² = (1.8 × 10⁻⁴)² = 3.2 × 10⁻⁸

4 0
3 years ago
Read 2 more answers
Given the speed of light as 3.0 × 108 m/s, calculate the wavelength of the electromagnetic radiation whose frequency is 7.5 × 10
arlik [135]
Wavelength= velocity/frequency
wavelength= (3.0 x 10^8m/s) / 7.5 x 10^12 Hz)
you can do the math
I am assuming u that 108 is 10^8 and the 1012 is 10^12
3 0
3 years ago
Other questions:
  • Consider the following equilibrium: 2SO2(g) + O2(g) 2SO3(g) Which of the following is a correct equilibrium expression? Keq=[SO3
    14·1 answer
  • What is true about two neutral atoms of the element gold
    6·1 answer
  • The mass of an iron(II) sulfate crystal is 8.36 g.How many moles of FeSO4 are in the crystal?
    11·1 answer
  • My question is what is a cell?
    7·1 answer
  • The following initial rate data are for the reaction of mercury(II) chloride with oxalate ion: 2 HgCl2 + C2O42- 2 Cl- + Hg2Cl2 +
    15·1 answer
  • Which of the following measures the radiation given off by atoms per second?
    9·2 answers
  • Newton's first law of motion says that an object in motion will remain in
    7·1 answer
  • How is our sense of vision like our sense of smell? ​
    15·1 answer
  • According to Arrhenius, NH4+ an acid or a base? Write an equation to support
    12·1 answer
  • How can criteria be used to help define the problem?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!