# Posts by Kartik

Total # Posts: 17

**Chemistry**

As we know that on moving downwards in a group size decreases in periodic table.Therefore the order of decreasing size of the cations is : Ra2+>Ba2+>Sr2+>Ca2+.

**Chemistry**

Arrange the following cations in order of decreasing size :Ra2+,Sr2+,Ca2+,Ba2+.Also explain it.

**Math; science ;English; hindi; S.S**

Construct a triangle in which BC=5.2 AB-AC=1.2cm and B=60Â° Also write the construction

**Physics**

An electric heater supplied at 40 Volt's draws a current of 5 ampere. If it is now connected to a 120 Volt supply, find the value of current being drawn ?

**Physics**

A nichrome wire of diameter 5mm and length 5m has resistivity of 10^-4 ohm meter. If wire is compressed to double it's diameter. Find the resistance in its new form. Also find the resistance of the wire originally ?

**Math**

Total the ages of Apple and Benny is 38. Seven years ago, Apple was three times as old as Benny. How old Benny`s present age?

**chemistry**

a compound or solute will molecular mass 36?

**math**

A rectangular garden plot 16m by 24m is to bordered by a strip of uniform width X m wide on the outside, so as to double the area, find the new length and breadth of the rectangular garden

**Science**

A body weight 500 N in air and weight of displace water is 300N then find apparent loss in the weight of body. The upthrust on body. The volume of the body

**math**

Find the point P on the curve y2 = 4ax which is nearest to the point (11a, 0).

**math**

Find the unit vector perpendicular to the plane ABC where the position vectors of A, B and C are 2 ^i – ^j + ^ k , ^i + ^j + 2 ^ k and 2 ^i + 3 ^ k respectively.

**math help**

Enrique charges $5 for every 1/5 hour he spends walking dogs. In the morning he walks Buttons for 2/5 hour, Bruno for 1/5 hour, and Pepper for 3/5 hour, Monday through Friday. On Saturdays he takes Mimi, Diva, and Coco to the dog park for 4/5 of an hour. On Wednesday this week...

**math**

Enrique charges $5 for every 1/5 hour he spends walking dogs. In the morning he walks Buttons for 2/5 hour, Bruno for 1/5 hour, and Pepper for 3/5 hour, Monday through Friday. On Saturdays he takes Mimi, Diva, and Coco to the dog park for 4/5 of an hour. On Wednesday this week...

**math**

The budget for the childrens museum's annual party is $20,000 . Food accounts for 1/2 of the budget , beverages accounts for 1/5 of the budget, decorations for 1/8 ,and entertainment for 1/8 of the budget . The rest of the money will be spent on staffing the event . How ...

**math**

it took tracy 1 1/4 hours to finish her homework . how many seconds did it take trac to do her work?

**calculus**

prove that sin invers (1/5)+COT INVERSE (3)=0

**physics homework**

what do you mean by a change of state?