Rilwan

This page lists questions and answers that were posted by visitors named Rilwan.

Questions

The following questions were asked by visitors named Rilwan.

A compound F on heating give a cracking sound and G give a reddish brown fumes when hot, and yellow when cool, and a gas H light a glowing splint and a residue J. Identify F,G,H,J. What is the name of that crack sound and the name of the compound?

M and N are the midpoints of opposite sides of square ABCD.A point is selected at random in the square.find the probability that it lies in traingle ADM but not in triangle ADN

The 90 men that visited a restaurant take one of either pounded yam,rice and amala.10 take pounded yam and rice,19 take rice and amala and 29 take pounded yam and amala.x men take all the three menu.2x men each take only one food item.how many take all th...

The difference between the digits of a two digit number is 1.The number itself is 1 more than 5 times the sum of its digits.If the units digits is greater than the tens digit,find the number.

What is the vertex of a cone

Find the square root of 12-22square root 2

A fixed mass of gas of volume 600 cm cube at a temperature of 27 C is cooled at constant pressure to a temperature of 0C.what is the change in volume

A gas occupies 8 litres at 23'C and 70cmHg what is the volume at stp

A thread of mercury of length 15cm is used to trap some air in a capillary tube with uniform cross sectional area and closed at one end.With the tube vertical and the open end uppermost,the length of the trapped air column is 20cm.calculate the length of...

A and B are points on the parallel of latitude 58.4N their longitudes being 148W and 32E respectively.What is their distance apart (a)along the parallel of latitude (b)along a great circle

A uniform capillary tube closed at one end contained dry air trapped by a thread of mercury 8.5×10^-2m long.When the tube was held horizontally the length of the air column was 5×10^-2m,when it was held vertically with the closed end downwards the length...

The market price of a box of sweets is #2800.A customer is given a 4% discount for purchasing 40 boxes.How much did the customer pay

If 0.022 kg of ice at 0C is added to 0.450 kg of water at 80C, what is the final temperature. (Assume that there is no heat lost to the surroundings.)

Tom is twice as old as Mary,but he is two years younger than Jim.What is Mary age if Jim will be twenty years old in two years time?

d^2y/dx^2=10-3x find dy/dx+c

If event A=(drawing a king) and event B=(drawing a red card).what is the probability of drawing A or B

Answers

The following answers were posted by visitors named Rilwan.

The final answer is 37....The solution u gave was 21

Could you help me with the problem?

A thread of mercury of length 15cm is used to trap some air in a capillary tube with uniform cross sectional area and closed at one end.With the tube vertical and the open and uppermost,the length of the trapped air column is rock.calculate the length of...

But the colour of the king not specified and don't forget there are 4 kings in a playing cards.2 red kings and 2 black kings