# Posts by Khalifa

Total # Posts: 6

Math
30 red socks, 22 gold socks and 14 black socks. How many socks would he have to pick up before getting a matching pair?

Physics
Thomas the train and Diesel are involved in an elastic collision. A 2.5 kg Thomas is, at rest but is approached head-on by a 5.0 kg Diesel moving at 0.60 m/s. The force-separation graph for the ensuing collision is given. (12 marks) What is the total kinetic energy before the ...

Physics
v1'=((m1-m2)/(m1+m2))v1 for the bullet =176ms^-1 And for the sandbag at rest v2'=((2m1)/(m1+m2))v1 =396ms^-1 The bullet is conserved after the bullet comes to rest in the bag. Hence Mgh= 1/2mv^2. I got stuck here what is going to be the value of M, is it sum of the two...

Physics
A bullet of mass 45 g is fired at a speed of 220 m/s into a 5.0-kg sandbag hanging from a string from the ceiling. The sandbag absorbs the bullet and begins to swing. To what maximum vertical height will it rise? Hint: Energy is not conserved as the bullet enters the bag but ...

math
The financial officer for an accounting firm allows Dh 50,000 for computer supplies in the annual budget. After 6 months, Dh 26,200 has been spent on supplies. Is this figure within 55% of the annual budget?

Math(Urgent)
The financial officer for an accounting firm allows Dh 50,000 for computer supplies in the annual budget. After 6 months, Dh 26,200 has been spent on supplies. Is this figure within 55% of the annual budget?

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