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
MAVERICK [17]
3 years ago
7

A playground tire swing has a period of 2.0 s on Earth. What is the length of its chain?

Physics
1 answer:
Jet001 [13]3 years ago
5 0

Answer:

Length of the chain, l = 0.99 m

Explanation:

Given that,

A playground tire swing has a period of 2.0 s on Earth i.e.

T = 2 s

We need to find the length of this chain. The relationship between the length and the time period is given by :

T=2\pi \sqrt{\dfrac{l}{g}}

Where

l = length of chain

g = acceleration due to gravity

l=\dfrac{T^2g}{4\pi^2}

l=\dfrac{(2)^2\times 9.8}{4\pi^2}

l = 0.99 meters

So, the length of the chain is 0.99 meters. Hence, this is the required solution.

You might be interested in
PLEASE HELP I NEED IT RIGHT NOW
morpeh [17]
The answer should be B :)
7 0
3 years ago
Read 2 more answers
Radio stations use electromagnetic waves for broadcasting. The chart shows different frequencies of waves used by radio stations
nlexa [21]
Radio Station W as the slower the frequency the longer the wave length
6 0
3 years ago
Read 2 more answers
Which characteristic must a food have to receive a “natural” label from the FDA ?
adelina 88 [10]
No artificial ingredients
i only know that because my mom was vegan for two years
4 0
3 years ago
What is the speed of light in air ?<br><img src="https://tex.z-dn.net/?f=%20%5C%5C%20" id="TexFormula1" title=" \\ " alt=" \\ "
hichkok12 [17]

Answer:

the speed of light in air is about 299,000,000 and 3×10⁸ m/s

4 0
2 years ago
Read 2 more answers
A piece of aluminum has a volume of 1.50 10-3 m3. the coefficient of volume expansion for aluminum is β = 69 ✕ 10-6 (°c)-1. the
Alex17521 [72]

Answer:

W = 3.12 J

Explanation:

Given the volume is 1.50*10^-3  m^3 and the coefficient of volume for aluminum is β = 69*10^-6 (°C)^-1. The temperature rises from 22°C to 320°C. The difference in temperature is 320 - 22 = 298°C, so ΔT = 298°C. To reiterate our known values we have:

β = 69*10^-6 (°C)^-1       V = 1.50*10^-3  m^3       ΔT = 298°C

So we can plug into the thermal expansion equation to find ΔV which is how much the volume expanded (I'll use d instead of Δ because of format):

dV = \beta V_{0} dT\\dV = (69*10^{-6})( C)^{-1} * (1.50*10^{-3})m^{3} * (298)C\\dV = 3.0843*10^-5

So ΔV = 3.0843*10^-5 m^3

Now we have ΔV, next we have to solve for the work done by thermal expansion. The air pressure is 1.01 * 10^5 Pa

To get work, multiply the air pressure and the volume change.

W = P * dV = (1.01 * 10^5)Pa * (3.0843*10^{-5})m^3\\W = 3.115143J

W = 3.12 J

Hope this helps!

4 0
3 years ago
Other questions:
  • In order for a reaction to begin, what is required?
    5·2 answers
  • When it rises, air has more weight above it, and the higher pressure allows the air to expand.A.TrueB.False
    14·1 answer
  • For the following question, two statements are given- one labelled Assertion (A) and the other labelled Reason (R). Select the c
    9·1 answer
  • In which stage in the life cycle of a cnidarian is the organism anchored to the bitten of the ocean or lake where it lives
    10·1 answer
  • Ductility describes the ability of a substance to deform without breaking or fracturing. This physical property allows metallic
    7·2 answers
  • A house is 54.0 ft long and 48 ft wide, and has 8.0-ft-high ceilings. What is the volume of the interior of the house in cubic m
    5·1 answer
  • The primary gas in a volcano is: carbon dioxide, sulfur dioxide, water vapor, nitrogen.
    8·2 answers
  • From fastest to slowest, which of the following lists describes the speed at which sound tends to travel in different materials?
    12·1 answer
  • What is the period and frequency of the second hand on a clock?
    6·1 answer
  • A wolf spider runs 75 cm west, then turns and runs 50 cm south. Which choice gives the correct solution for the resultant? Quest
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!