That is type of substance which produce magnetic field
(Example: fridge magnet)
Answer:
T = 4.42 10⁴ N
Explanation:
this is a problem of standing waves, let's start with the open tube, to calculate the wavelength
λ = 4L / n n = 1, 3, 5, ... (2n-1)
How the third resonance is excited
m = 3
L = 192 cm = 1.92 m
λ = 4 1.92 / 3
λ = 2.56 m
As in the resonant processes, the frequency is maintained until you look for the frequency in this tube, with the speed ratio
v = λ f
f = v / λ
f = 343 / 2.56
f = 133.98 Hz
Now he works with the rope, which oscillates in its second mode m = 2 and has a length of L = 37 cm = 0.37 m
The expression for standing waves on a string is
λ = 2L / n
λ = 2 0.37 / 2
λ = 0.37 m
The speed of the wave is
v = λ f
As we have some resonance processes between the string and the tube the frequency is the same
v = 0.37 133.98
v = 49.57 m / s
Let's use the relationship of the speed of the wave with the properties of the string
v = √ T /μ
T = v² μ
T = 49.57² 18
T = 4.42 10⁴ N
You are looking to find gravitational energy, the formula for that is (height)(weight)(acceleration due to gravity). In your case I️t will be (3)(2)(9.8)= 58.8 Joules
Answer:
keep it and use it in similar assignments
Explanation:
A personal strategy card is a form of student assessment where teachers can look at the learning process of the student and get a feedback on the next learning step to be taken by the student.
The card can a sections are;
- what the topics covered and the challenges faced.
- Identifying the connection created from current and previous topics.
- The student will note down his/her experience in the topic.
- Re-organizing the information in topic.
- Writing a personal journal on all the steps covered.
This information is important because it can be used as a study guide on other similar assignments .
Answer:
Explanation:
Given
See attachment for complete question
Required
How long to reach the ground from the maximum height
First, calculate the time of flight (T)
The time taken (t) from maximum height to the ground is:
So, we have:
Another representation is:
At ymax, the time is: t1
On the ground, the time is t2
The difference between these times is the time taken.
So;
Since air resistance is to be ignored, then
--- i.e. time to reach the maximum height from the ground equals time to reach the ground from the maximum height
