How can you feel your own pulse? Which of the two has a higher pulse rate : a small boy or an adult person ?

Every student in your class should measure his/her own pulse rate. Note the pulse rates of all students and find the mode of the pulse rate.

A U -shaped wire of mass m and length l is immersed with its two ends in mercury (see figure). The wire is in a homogenous field of magnetic induction B . if a charge, that is, a current pulse q=int idt , set through the wire, the wire will jump up. If the wire reaches height h calculate the magnitude of the charge or current pulse, assuming that the time of the current pulse is very small in comparision with the time of flight. Make use of the fact that impulse of force equals intFdt , which equal mv . Evalute q for B=0.1 Wb//m^(2), m=10 gm,l=20cm & h=3 meters.

Many people who are looking to get a pet dog get a puppy. There are many reasons why people get puppies. After all, puppies are cute, friendly, and playful. But even though puppies make good pets, there are good reasons why you should consider getting an adult dog instead. When you get a puppy, you have to teach it how to behave. You have to make sure that the puppy is housebroken so that It does not go to the bathroom inside the house. You have to teach the puppy, not to jump up on your guests or chew on your shoes. You have to train the puppy to walk on a leash. This is a lot of work. On the other hand, when you get an adult dog there is a good chance that it will already know how to do all of the previously mentioned things. Many adult dogs have already been housebroken. Many adult dogs will not jump on or chew things that you do not want them to jump on or chew. Many adult dogs will be able to walk on a leash without pulling you to the other side of the street. Puppies also have a lot of energy and want to play all of the time. This can be fun, but you might not want to play as much as your puppy does. Puppies will not always sleep through the night or let you relax as you watch television. On the other hand, most adult dogs will wait on you to play. What is more, they will sleep when you are sleeping and are happy to watch television on the couch right beside you. There is one last reason why you should get an adult dog instead of a puppy. When most people go to the pound to get a dog, they get a puppy. This means that many adult dogs spend a lot of time in the pound and some never find good homes. So if you are looking to get a dog for a pet, you should think about getting an adult dog. They are good pets who need good homes. Based on the information in the passage, it can be understood that someone who owns a puppy must be very