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
Tcecarenko [31]
3 years ago
15

What is the free-fall acceleration on a planet where the period of a 1.07 m long pendulum is 2.02 s?

Physics
1 answer:
sergeinik [125]3 years ago
5 0

Answer:

10.34 m/s^2

Explanation:

length, L = 1.07 m

Time period, T = 2.02 s

The formula of the time period of the pendulum is

T = 2\pi \sqrt{\frac{L}{g}}

where, g is the free fall acceleration on that planet.

g=4\pi ^{2}\frac{L}{T^{2}}

g=4\pi ^{2}\frac{1.07}{2.02^{2}}

g = 10.34 m/s^2

You might be interested in
The more particles a substance has at a given temperature, the more thermal energy it has.
olasank [31]
The statement '<span>The more particles a substance has at a given temperature, the more thermal energy it has' is true. </span><span>The kinetic molecular theory of gases has three main laws and one of them is the average kinetic energy of the particles in a gas. The average kinetic energy of the gas particles is the behavior and movement it does in the surroundings. It is directly proportional to temperature wherein if you increase the temperature, the kinetic energy of a particle also increases. It will also decrease its movement or its kinetic energy if the temperature lowers. </span>
5 0
3 years ago
A raindrop or partially melted snowflake that freezes into a pellet of ice in a deep subfreezing layer of air near the surface i
Morgarella [4.7K]
<span>A raindrop or partially melted snowflake that freezes into a pellet of ice in a deep subfreezing layer of air near the surface is called sleet. 

Answer: Sleet 

</span><span>Hope that helps! ★ <span>If you have further questions about this question or need more help, feel free to comment below or leave me a PM. -UnicornFudge aka Nadia </span></span>
8 0
3 years ago
If an airplane is flying at 300 km/h to the east and is facing a headwind of 18.0 km/h, what is the airplane's final velocity?
givi [52]
If an airplane is flying at 300 km/h to the east and is facing a headwind of 18.0 km/h, the final velocity can be calculated using simple vector addition. In this case, the planes velocity is positive (+330 km/h) and head wind has a negative component (-18.0 km/h). Vector addition yields +330 km / h + (-18.0 km /h) = 312 km / h. 
8 0
3 years ago
Water is boiled at sea level in a coffeemaker equipped with an immersion-type electric heating element. The coffee maker contain
Luden [163]

Answer:

P=1362\ W

t'=251.659\ s is time required to heat to boiling point form initial temperature.

Explanation:

Given:

initial temperature of water, T_i=18^{\circ}C

time taken to vapourize half a liter of water, t=18\ min=1080\ s

desity of water, \rho=1\ kg.L^{-1}

So, the givne mass of water, m=1\ kg

enthalpy of vaporization of water, h_{fg}=2256.4\times 10^{-3}\ J.kg^{-1}

specific heat of water, c=4180\ J.kg^{-1}.K^{-1}

Amount of heat required to raise the temperature of given water mass to 100°C:

Q_s=m.c.\Delta T

Q_s=1\times 4180\times (100-18)

Q_s=342760\ J

Now the amount of heat required to vaporize 0.5 kg of water:

Q_v=m'\times h_{fg}

where:

m'=0.5\ kg= mass of water vaporized due to boiling

Q_v=0.5\times 2256.4

Q_v=1.1282\times 10^{6}\ J

Now the power rating of the boiler:

P=\frac{Q_s+Q_v}{t}

P=\frac{342760+1128200}{1080}

P=1362\ W

Now the time required to heat to boiling point form initial temperature:

t'=\frac{Q_s}{P}

t'=\frac{342760}{1362}

t'=251.659\ s

6 0
3 years ago
A boy throws a ball and accidentally breaks a window. The momentum of the ball and all the pieces of glass taken together after
Aleks [24]
When a boy throws a ball and accidentally breaks a window, the momentum of the ball and all the pieces of glass taken together after the collision is THE SAME as the momentum of the ball before the collision

hope this helps
6 0
3 years ago
Read 2 more answers
Other questions:
  • Using the formula for work, Match the Force × Distance problems with their correct "Work Performed" answer. The first example ha
    11·1 answer
  • How long will it take you to pass a truck at 60 mph with oncoming traffic?
    9·2 answers
  • Ask Your Teacher A flight attendant pulls her 69 N flight bag a distance of 268 m along a level airport floor at a constant velo
    8·1 answer
  • A cyclist rode at an average speed of 15mph for 30 miles how long was the ride
    15·1 answer
  • True or false The sound of a police siren would be an example of the Doppler effect
    13·1 answer
  • Plsss answer this plsss answer this plsss answer this plsss answer this ​
    8·2 answers
  • Los estudiantes de la clase del Sr. Malio trabajaron en una investigación para medir el tiempo que le tomó al automóvil de energ
    7·1 answer
  • You get points!! IMPORTANT
    11·2 answers
  • An astronaut and his space suit have a combined mass of 157 kg. The
    15·1 answer
  • If the velocity of gas molecules is doubled the its kinetic energy will be
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!