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
Vlad1618 [11]
3 years ago
10

a disk of a radius 50 cm rotates at a constant rate of 100 rpm. what distance in meters will a point on the outside rim travel d

uring 30 seconds of rotation?​
Physics
1 answer:
Illusion [34]3 years ago
5 0

Answer:

239 rpm

Explanation: So the distance covered in one minute is 75,000 centimeters. The diameter of the wheel is 100 cm, so the radius is 50 cm, and the circumference is 100π cm. How many of these circumferences (or wheel revolutions) fit inside the 75,000 cm? In other words, if I were to peel this wheel's tread from the cart and lay it out flat, it would measure a distance of 100π cm. How many of these lengths fit into the entire distance covered in one minute? To find out how many of (this) fit into so many of (that), I must divide (that) by (this), so:

100πcm/rev

75,000cm/min

​750 min rev≈238.7324146RPM

You might be interested in
What are igneous intrusions and extrusions
spayn [35]

Igneous intrusions form when magma cools and solidifies before it can reach the surface. An extrusion consists of extrusive rock; which forms above the surface of the crust.

3 0
3 years ago
Ballon volume of 3200ml of xenon gas is at a gauge pressure of 122kPa and a temperature of 27c. What is the volume when the ball
N76 [4]

Given:

The initial volume of the gas, V₁=3200 ml=3.2×10⁻³ m³

The initial pressure of the gas, P₁=122 kPa

The initial temperature of the gas, T₁=27 °C=300 K

The final temperature, T₂=65 °C=338 K

The final pressure, P₂=112 kPa

To find:

The final volume of xenon gas.

Explanation:

From the combined gas law,

\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}

Where V₂ is the volume after it is heated.

On rearranging the above equation,

V_2=\frac{T_2P_1V_1}{T_1P_2}

On substituting the known values,

\begin{gathered} V_2=\frac{338\times112\times10^3\times3.2\times10^{-3}}{300\times112\times10^3} \\ =3.61\text{ m}^3 \end{gathered}

Final answer:

The volume of the balloon when it is heated is 3.61 m³

4 0
1 year ago
What is a conclusion?
Vikki [24]
The end or finish of an event or process.
8 0
2 years ago
Read 2 more answers
Male turkeys work to attract female turkeys, but only the dominant turkeys of the group breed. The less dominant turkeys are a g
coldgirl [10]

Answer:

altruism

Explanation:

4 0
3 years ago
Why is moving a box with a mass of 37 kilograms a distance of 37 meters why it did 360 joules of work in two minutes when moving
alexira [117]
Power= energy/time= 360/(2*60)=3 W thats 2nd option
6 0
3 years ago
Other questions:
  • What is the final electron receptor in the light reaction of photosynthesis?
    6·1 answer
  • People in the future may well live inside a rotating space structure that is more than 2 km in diameter. Inside the structure, p
    6·1 answer
  • Can you explain to be the definition of Quantum Theory?
    15·1 answer
  • A small spaceship with a mass of only 2.6 ✕ 103 kg (including an astronaut) is drifting in outer space with negligible gravitati
    14·1 answer
  • A 9,100​-microfarad ​[mu​F] capacitor is charged to 22 volts​ [V]. If the capacitor is completely discharged through an iron rod
    14·1 answer
  • Which of the following describes resistance?
    8·1 answer
  • Please help
    7·2 answers
  • In young Goodman’s Brown hawthornes reveals his feelings about his Puritan ancestors when
    6·1 answer
  • URGENT!! An astronaut on the International Space Station is doing a spacewalk to fix a solar panel that has malfunctioned. While
    14·2 answers
  • In which direction does the electric field point at a position directly east of a
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!