OHara

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.

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 - 5x - 4 is divided by 2x - 3 Please help, this is urgent. Thanks.

Find the quotient and remainder in the following: a) x^4 +3x^3 + 5x^2 - 6x - 8 is divided by x + 2

Factorise (x - 1)^2 - 4y^2

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 area?

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 will the block produce greatest and least pressure on the ground.

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). Upwards at 0.65m/s^2 ? b). Downwards at 0.65m/s^2 ?

A car of mass 550kg accelerates steadily from rest to 25m/s in 30s. a). What is its acceleration? b). What resultant force produces this acceleration? c). The actual force will be greater, why?

How is dust in operating theatres controlled?

Thanks Henry.

Charles law can be written as: V1/T1 = V2/T2 (at constant pressure)

Thanks mate.

Thanks kuai.

Thanks guys:)

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.