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A car is being driven along a road at 25 m s-1 when the driver suddenly notices that there is a fallen tree blocking the road 65 m ahead. The driver immediately applies the brakes giving the car a constant acceleration of -5 m s-2. How far in front of the tree does the car come to rest? Ans: 2.5 m before.
25cm^3 of magnesium Chloride compleatly reacted with 12.5cm^3 of 0.2M silver nitrate to precipitate silver Chloride .Haw many grams of magnesium Chloride are contained in 500cm^3 of the solution
Acme Tobacco is currently selling 5,000 pounds of pipe tobacco per year. Due to competitive pressures, the average price of a pipe declines from $15 to $12. As a result , the demand for Acme pipe tobacco increases to 6,000 pounds per year.
a) Assuming that the cross elasticity does not change, at what price of pipes would the demand for pipe tobacco be 3,000 pounds per year? Use $15 as the initial price of a pipe
- For what values of h the vectors
⟶ [1 ⟶ [-1 ⟶ [5
u1 = -3 u2 = 9 u3 = -7
-2] -6] h]
are linearly independent? (Show all working)
Computers process data under the control of sets of instructions called
Write a program which takes a number n as input and prints YAYY if the sum of all digits
except the rightmost digit is equal to the rightmost digit., otherwise print OOPS. (10 marks)
For example: If user enters 2237, it will print YAYY because 2+2+3 is equal to 7.
Whereas, if user enters 3425, it will print OOPS because 3+4+2 is not equal to 5. Without using loops
Which of the following is the solution of the equation below?
0x + 0y = 0.
1. (0, 0, 0).
2. (1, 0, 0).
3. No such solution exists.
4. Infinitely many solution or (−1, 2, 1)
1)Rank the following in terms lf increasing boiling point:
CaBr2
C2H5OH
C4H10
2) Rank these substances from lowest to highest intermolecular forces:
HF
F2
PCl3
3)Rank the following in terms of increasing melting point:
MgCl2
NaCl
AlCl3
using ϵ−δ definition, show that
lim x→2 (1/2 x2 - x + 1)
1)Rank the following in terms lf increasing boiling point:
CaBr²
C²H⁵OH
C⁴H¹⁰
2) Rank these substances from lowest to highest intermolecular forces:
HF
F²
PCl³
3)Rank the following in terms of increasing melting point:
MgCl²
NaCl
AlCl³
