Praveen
This page lists questions and answers that were posted by visitors named Praveen.
Questions
The following questions were asked by visitors named Praveen.
The maximum speed of a bus is 72km/h, it accelerates uniformly at the rate of 1m/s^2 and retards uniformly at the rate of 4m/s^2. Find the least time in which it can do a journey of 1km ?
15 years ago
A bus is moving with a velocity of 10m/s. A motor cyclist wishes to overtake the bus in 60 seconds. With what velocity the motor cyclist should chase the bus which is 1km ahead of him?
15 years ago
A capacitor of 4.5 MF, charged to 50v, is connected to another capacitor of = MF, charged to 100v. The total energy of the combination is
14 years ago
A set of 7 numbers has a mean of 9. What additional number must be included in this set to create a new set with a mean that is 3 less than the mean of the original set?
11 years ago
In an examination of 100 marks a person attempted 77 questions and got 42 correct answer and 35 wrong answer. If each correct answer carried 2 marks and wrong answer carried 0.50 marks. How much total marks the person scored?
9 years ago
Determine lamda m Oments wavelength of the peak of the Planck distribution annd the corresponding frequency f at these temperature a) 3.00k. b)300k c)3000k
7 years ago
The roots of x^2 + 5x + 3 = 0 are p and q, and the roots of x^2 + bx + c = 0 are p^2 and q^2. Find b + c.
5 years ago
Answers
The following answers were posted by visitors named Praveen.
So what can i do and please keep your lecture to yourself. I also know aht u wrote!!! And please help me and don't give moral lecture. N i didn't insult or make fun of anyone i just wanted help which i didn't get because you wrote something else out here!...
15 years ago
The answer to this question is 62.5s. Can you please explain it properly what is that Vf^2 = 2ad
15 years ago
heat gained by rod + heat lost by H2O = 0 [mass Fe x specific heat Fe x (Tfinal-Tinitial)] + [mass H2O x specific heat H2O x (Tfinal-Tinitial)] = 0 32.2*0.450*(58.4-22.8)+m*4.179*(58.4-63.7)=0 515.844=m*22.148 m=23.3 grams
11 years ago
heat gained by rod + heat lost by H2O = 0 [mass Fe x specific heat Fe x (Tfinal-Tinitial)] + [mass H2O x specific heat H2O x (Tfinal-Tinitial)] = 0 32.2*0.450*(58.6-22.3)+m*4.179*(58.6-63.9)=0 525.987=m*22.148 m=23.748 grams
11 years ago
Answer: $9.94/pound Shop paid: 600 lbs X $5.59 = $3,354 Assuming 10% spoilage, shop really purchased only 540 lbs at a total cost of $3,354 The cost to the shop including the spoilage = $6.21/lb 60% markup = $9.94/lb
11 years ago
24.333333333
8 years ago
5/2 mole of h2o2 is required
8 years ago
Is it correctly6
7 years ago
If you r seeking sadness you may have trouble with happiness meaning of this
5 years ago
I didn't get it, I need an answer quick. I tried plugging in those answers for b and c, it just got more complex. Please get an answer quick
5 years ago
This is urgent, it is due tonight
5 years ago
Please! I really need an answer quick!
5 years ago