Suppose a person develops the disease diphtheria. Comment upon the principle of the treatment he should receive.

Suppose a person wears convex galsses for proper vision. Where you think the image of the object is formed in his eyes when he is not using the glasses

Phil earned $800 at his summer job and saved all of his earnings .He wants to buy a deluxe drum kit that is regularly priced at $925 but is on sale for 1/5 off . The drum kit is subject to 5% sales tax after all discounts are applied . If phil buys the kit on sale and gives the sales cherk his entire summer earnings , how much change should he receive ?

For a disease to develop in the body the correct sequence of components of immune system that should fail to work effectively are A)Skin to Fever to B cells to antibodies to macrophage B)Mucous membrane to NK cells to B cells to antibodies to T. cells C) Tears to B cells to macrophages to antibodies to saliva D)Skin to inflammation to phagocytic cell to B cell to antibodies

A 90-kg man runs up an escalator while it is not in operation in 10s . What is the average power developed by the man. Suppose the escalator is running so that the escalator steps move at a speed of 0.5m^-1 . What is then the power developed by the man as seen by the ground reference if he moves at the same speed relative to the escalator steps as he did when the escalator is not in operation?

To permit measurement of her speed a sky diver carries a buzzer emitting a steady tone at 1800 Hz. A friend on the ground at the landing site directly below listens to the amplified sound he receives. Assume the air is calm and the sound speed is 343 (m)/(s) independent of altitude. While the sky diver is falling at terminal speed, his friend on the ground receives waves of frequency 2150 Hz. (a) What is the sky diver's speed of descent? (b) Suppose the sky diver can hear the sound of the buzzer reflected from the ground. What frequency does she receive?

The near and far points of a person are at 40 cm and 250cm respectively. Find the power of the lens he/she should use while reading at 25cm . With this lens on the eye, what maximum distance is clearly visible?