you right its urban heart island
Answer:
linear speed = 595.706 miles/hours
Explanation:
to find the linear speed of the moon (Express your answer in miles per hour)
Given
radius of the moon = 1737.1 km = 1079.4 mile (a constant value)
The mean distance of a moon from a planet is 2.82 * 10^ 5 miles
therefore, the total distance from the moon to the planet =
=1079.4 + 2.82 * 10^ 5 = 283,079.4 miles
Assuming that the orbit of the moon around the planet is circular and that
1 revolution takes 21.6 days = 21.6*22hours = 475.2 hours
(1 day is 22 hours),
therefore, the time taken for the moon to move round the planet is = 475.2 hours
then,
linear speed = Distance/time
=283,079.4 miles /475.2 hours = 595.706 miles/hours
Answer: c. number of time the swing moves.
evidence: “the students count how many times the swing move back and forth before stopping”
1. Communication
In early ages people were using letters to communicate between them. Now days instantly we can call one person from anywhere, these are based on optical fiber communication and it is an application of physics.
2. Transportation
We can travel from place to anther place by aeroplane , these technologies are introduced after advancement in physics.
3. Construction
Earlier people used to stay in small houses, now days apartments with many number of storeys are built by considering all the forces coming on the structure.
4. Medical Department
The invention of many equipment increased the health of humans.
5. Weather forecasting
The prediction of weather considering all the available factors, prediction of natural disasters all are application of physics.
Answer:
The amplitude is maximum when the frequency is 1.59Hz
Explanation:
This problem is based on the simple harmonic motion of a spring
The period of the motion T is given as
T =2π√m/k
Given data
Attached mass m= 1kg
Spring constant k =N/m
Substituting our data into the equation we have
T =2*3.142√1/100
T=6.284√0.01
T=6.284*0.1
T=0.63sec
But frequency f=1/T
f=1/0.63
f=1.59Hz