Explanation:
The density of a rope, d = 7.5 g/cm³
The cross-sectional area of the rope, A = 2 cm²
The tension in the rope, T = 100 N
One end is vibrated up and down with a frequency of 25 Hz.
(a) The velocity of the transverse wave in the rope is given by :
Mass per unit length will be :

So,

(b) Let
is the wavelength of the rope. So,

So, the velocity of the transverse wave in the rope is 2.58 m/s and the wavelength is 0.103 m.
Milk and other dairy products — such as yogurt, cheese, and cottage cheese — are good sources of calcium. You'll also find this mineral in broccoli and dark green, leafy vegetables. Soy foods and foods fortified with calcium, including some kinds of orange juice and soy milk, are also good sources.
False it is false since pollution isn't only in the city
Answer:
Most people who smoke tobacco start during their teenage years or as a young adult. There are many reasons why a person starts to smoke. For some teens, it is a way to rebel against their parents. Other teens may feel pressure from their friends (peer pressure) and begin smoking as a way to appear “cool”. A number of different motives for drinking alcohol have been examined, including drinking to enhance sociability, to increase power, to escape problems, to get drunk, for enjoyment, or for ritualistic reasons.
Explanation: Why not? Alcohol may lead to weight gain.
Alcohol interferes with memory and learning.
Alcohol increases the likelihood that you will use other drugs.
Alcohol increases your risk of developing cancer.
Alcohol can lead to liver disease and other severe, chronic diseases.
SMOKING: Lung Cancer. Smoking is the number one cause of lung cancer. ...
Heart Disease. One out of every five heart disease deaths is directly related to smoking. ...
Diabetes. Smoking causes type 2 diabetes. ...
Liver Cancer. ...
Erectile Dysfunction. ...
Ectopic Pregnancy... ect