A GOODSTUDENT

Questions

Newest questions posted by A GOODSTUDENT
1. Physics

One ship, sailing east with a speed of 7.5 m/s, passes a certain point at 8A.Mand a second ship sailing north at the same speed, passed the same point at 9:30 A.M. At What time are they closest together and what is the distance between them then?
2. Mathematics

A dealer gains a selling price of 4 watches by selling 20 watches. What is the percentage of profit?
3. Math

The product of numbers 3^(1/3).3^(1/9).3^(1/27)...... To infinity is A.3 B.3^(1/3) C.3^(1/2) D.3√3
4. Science

A ball is dropped from a height of 20 meter and rebounded with a velocity which is 3/4 of the velocity with which it hits the ground. What is time interval between the first and second bounces?
5. Physics

Two trains are running on parallel tracks., train A is faster than B.There is a box on each train of identical nature. But mass of box in train A is more than that of train B. If box is changed between the trains, what happens to speed of trains? A.Same B.

Responses

Newest responses posted by A GOODSTUDENT
1. Math

I am titally lost in this question and have absolutely no idea. Is there some rule or particular formula of solving such questions?
2. algebra

l=2w-----1 2{(l+4)+(w-1)}=198-----2
3. Science - heat

Thank you very much DrBob222