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OHara
Questions (9)
How is dust in operating theatres controlled?
1 answer
457 views
A car of mass 550kg accelerates steadily from rest to 25m/s in 30s.
a). What is its acceleration? b). What resultant force
2 answers
511 views
A student of mass 75kg stands in a lift, what is the normal reaction force(upward force) on him when the lift is accelerating:
a)
2 answers
479 views
A block measuring 0.1m x 0.4m x 1.5m has a mass of 30kg. Calculate the pressure in each position and state in which position
1 answer
384 views
A force of 2000N acts on an area of 4m^2, what is the pressure? What would be the pressure if the same force acted on half the
2 answers
511 views
Factorise (x - 1)^2 - 4y^2
3 answers
975 views
Find the quotient and remainder in the following:
a) x^4 +3x^3 + 5x^2 - 6x - 8 is divided by x + 2
2 answers
404 views
Find the quotient and the remainder in the following.
a). x^4 + 3x^3 + 5x^2 - 6x - 8 is divided by x + 2 b). 2x^4 - 3x^3 + 6x^2 -
2 answers
619 views
A car of mass 1200kg accelerates from rest at a rate of 2m/s^-2. Calculate how long it should take to reach a velocity of 50m/s.
2 answers
884 views
Answers (6)
I think I have a little idea on Q.a) only. F = ma = 550 x 25 =13750N so acceleration is a = v - u/t =25 - 0/30 =0.83 ms^-2 that's all i know. I don't know about Q.b and Q.c.
Thanks guys:)
Thanks kuai.
Thanks mate.
Charles law can be written as: V1/T1 = V2/T2 (at constant pressure)
Thanks Henry.
