Recent content by math4me

Im new to physics but yes i have tried

I am doing some revision for physics and can't evaluate these questions, can anybody help or give a formula. Q1. A mass of 2.2 Kg is suspended from a spring of spring constant K = 25 Nm^-1 What is the initial extension? Q2. The mass (in Q1) is pulled down a further 5cm and released...

Yes Hall helped me ty v much everyone it is much appreciated. :-)

Ah so the internal angle is 40 degrees, so the angle of reflection is 20 degrees? Am i right anyone??

Chen i having difficulty could you please explain.

any ideas anybody?

If a beam of light shines from the 10 on the face of a clock, reflects off a mirror in the center and strikes the 5, what is the angle of reflection. If anyone could help me, it would be much appreciated tyty.

Acceleration caused by gravity Newtons 2nd law Acceleration caused by gravity = Force ----- Mass = 9.81N ----- 1Kg = 9.81 ms^-2 (Force to accelerate 1kg by 1ms^-2)

mer·ce·nar·ies One who serves or works merely for monetary gain; a hireling. A professional soldier hired for service in a foreign army.

Anybody please tyty.

At the last point the final velocity, so what would the acceleration be, not to clude up on the equation(s). Thank you very much

I would really appreciate some help on this please: Distance in metres 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 Time talen to travel distance (in seconds) 0.72 1.28 1.67 1.85 2.08 2.50 2.83 3.01 3.13 3.25 What would you expect the accelartion to be and also what would...

I am trying to find F, i have L = 60cm and U = 31cm, how would i calculate f (focal length)? and also how would i find the uncertainties? thank you very much

My son is studying science at the moment, and i was wondering if anyone would be kind enough to answer a few question: 1. Why does sugar increase the temperature of water? 2. Why does a fan blowing on heated water cool down faster? and 3. How does insulation keep water warm? Thankyou...