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Questions Asked on July 1, 2020

A trader has 100 mangoes for sale. Twenty of them are unripe. Another five of them are bad. If he picks a mango is at random,
1. 6 answers
2. asked by brielle
3. 1,696 views
A bicycle pump contains 250 cm3 of air at a pressure of 90 KPa. If the air is compressed, the volume is reduced to 200 cm3. What
1. 1 answer
2. asked by Ana
3. 544 views
What kinds of careers can I do with these subjectsMaths pure, physics, life science geography
1. 1 answer
2. asked by Amahle
3. 114 views
Factorise (p-a)^3 +(p-b)^3 +(p-c)^3 where p=a+b+c/3
1. 1 answer
2. asked by Shehzad
3. 608 views
Factorise..(x+y-z)^3 +(x-y+z)^3 -8x^3
1. 1 answer
2. asked by Shehzad
3. 524 views
the density of copper is 9.86 g/cm^3 work out the mass of the copper cuboid in kg
1. 1 answer
2. asked by azf
3. 1,723 views
what career path can i take to study with these subjects ?maths lit,history,geogs,business studies
1. 2 answers
2. asked by NISHA
3. 164 views
If the vertices of Triangle ABC are A(5,-1) , B (-3,-2) , and C (-1 ,8) , find the length of the median through A
1. 1 answer
2. asked by ilhan
3. 494 views
Which job can I get
1. 1 answer
2. asked by Nduvho
3. 109 views
A bicycle pump contains 250cm3 of air at a pressure of 90kPa, the volume is reduced to 200cm3. What is the pressure of the air
1. 3 answers
2. asked by Ana
3. 569 views
A brass of rod is 2m long at a certain temperature. What is its length for a temperature rise of 100 K if the expansivity of
1. 1 answer
2. asked by Idogun
3. 483 views
A cylinder of acetylene gas is kept at a temperature of 291K. The pressure in the cylinder is 5atm. This cylinder can withstand
1. 1 answer
2. asked by Sarah
3. 940 views
A gas at 7°C and 100kPa occupies 20 litres. The gas is heated to 27°C at pressure 120kPa. Find the new volume.
1. 1 answer
2. asked by Sugus
3. 405 views
A sample of gas collected at 25°C and 2atm pressure occupies 500ml, what would it occupy at Standard temperature and pressure
1. 1 answer
2. asked by Sugus
3. 609 views
Calculate the final temperature of a gas when it expands from 5m3 to 7.5m3, if the pressure remains constant and the original
1. 1 answer
2. asked by Sugus
3. 374 views
A gas occupies a volume of 10cm3 at 100kPa. If the pressure is increased to 200kPa, What is the new volume if the temperature
1. 1 answer
2. asked by Sugus
3. 597 views
A gas kept at constant temperature occupies 100m3 when the pressure is 15Pa. What will be the new volume when the pressure
1. 1 answer
2. asked by Sugus
3. 429 views
A container has 70cm3 of air at 100kPa and temperature 7°C. What is the final pressure when the air is compressed to 30cm3 at
1. 1 answer
2. asked by Sugus
3. 487 views
Line segment AB with length a is divided by points P and Q into three line segments: AP , PQ, and QB , such that AP = 2PQ=2QB.
1. 1 answer
2. asked by Isa
3. 724 views
If f ''(x) = x3(x−1)3(x+5)2, find the x-values for all the points of inflection. (Enter your answers as a comma separated
1. 2 answers
2. asked by Anonymous
3. 610 views
A man with a mass of 75 kilograms is standing on a roller coaster platform. As the roller coaster begins to move, the man
1. 0 answers
2. asked by Mimic
3. 1,176 views
The PBS protocol above says to adjust pH to 7.4 with HCl. What does this imply on the pH of 10x PBS before adjusting the pH,
1. 1 answer
2. asked by laur
3. 841 views
If a tank is emptied in 5 minutes by a pump that is pumping at a rate of 300 gallons per minute, how long will it take to empty
1. 2 answers
2. asked by Kavya
3. 887 views
Evaluate the indefinite integral1.((x^4 -2 +x)3x^-1)
1. 1 answer
2. asked by Pearl
3. 335 views
3x4 − 8x3 + 5 = 0, [2, 3](a) Explain how we know that the given equation must have a root in the given interval. Let f(x) =
1. 2 answers
2. asked by Anonymous
3. 7,274 views
Why does nacl conduct electricity and benzene do not
1. 1 answer
2. asked by John
3. 940 views
At what temperature will a mass of a gas occupying 200cm3 at 0°C have a volume of 300cm3 if the pressure remains constant?
1. 1 answer
2. asked by Sugus
3. 557 views
A body is projected upwards at any an angle of 30 degree with the horizontal and intial speed of 200 ms^1 in how many seconds
1. 2 answers
2. asked by Williams
3. 498 views
A cable passes over a pulley. Because of friction, the tension in the cable is not eh same on opposite side of the pulley. The
1. 1 answer
2. asked by Solution
3. 880 views
A cyclist travels for x hours at 5km/h he travels 35km/h altogether and his average speed is 7km/h find x and y
1. 2 answers
2. asked by Marvel
3. 962 views
Q3) If a tank is emptied in 5 minutes by a pump that is pumping at a rate of 300 gallons per minute, how long will it take to
1. 1 answer
2. asked by Pinky
3. 594 views
Using kinetic theory of matter, explain the relationship between the following properties of gases.A: Volume & Temperature B:
1. 1 answer
2. asked by Ifechukwu
3. 510 views
Write a letter to a friend who wants to visit your school giving him direction to your school and telling him two interesting
1. 15 answers
2. asked by Agbenyo
3. 6,954 views
If x^a * x^b = (x^a)^b, prove that a/b + b/a = -1.Best I can get is a/b + b/a = ab - 2. Is there any way to show ab = 1 or other
1. 1 answer
2. asked by Poincare
3. 424 views

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