Smith works part time and earns $3.25 an hour. If he wants to earn at ..
Smith works part time and earns $3.25 an hour. If he wants to earn at least $125, how many full hours must he work? => 36 or 39 or 38 or 34..
Hanna earns $7 per hour doing a part time job while Victor earns $13. ..
Hanna earns $7 per hour doing a part time job while Victor earns $13. How many hours each of them should work to earn $119, if they work together for 11 hours? => Hanna should work for 8 hours, Victor should work for 5 hours or Hanna shoul..
Carol earns $5 per hour doing a part time job while William earns $9. ..
Carol earns $5 per hour doing a part time job while William earns $9. How many hours each of them should work to earn $101, if they work together for 13 hours? => Both Carol and William should work for 9 hours or Carol should work for 5 ho..
Jimmy does two part time jobs. He earns $5 per hour for the first job ..
Jimmy does two part time jobs. He earns $5 per hour for the first job and $6.25 per hour for the second job. He works for 15 hours in a week on the first job. He can work as many hours as he can on the second job. How many hours he has to work on th..
Thus, work done in unit time or rate of doing work is defined as power.
Power is denoted by the letter 'P'. As energy is the capacity to do work, power can also be defined as energy consumed in unit time. SI unit of power SI unit of work is joule and time is second. Therefore, SI unit of power is joule/sec. 1 joule/sec =..
Power is denoted by the letter 'P'. As energy is the capacity to do work, power can also be defined as energy consumed in unit time. SI unit of power SI unit of work is joule and time is second. Therefore, SI unit of power is joule/sec. 1 joule/sec =..Irena earns $6 per hour doing a part time job while Jimmy earns $11. I..
Irena earns $6 per hour doing a part time job while Jimmy earns $11. If they work a total of 8 hours, how many hours does each of them work, if they earn a total of $73? => Irena should work for 6 hours, Jimmy should work for 4 hours or Ir..
Divide 441 into two parts such that nine times the greater part will ..
Divide 441 into two parts such that nine times the greater part will be equal to 12 times the smaller one. => 184, 257 or 194, 247 or 189, 252 or 186, 255..
Theory and Working
The positive ion P to be accelerated is placed in between the two dees. If at any instant, D 1 is at negative potential and D 2 is at positive potential, then the ion gets accelerated towards D 1 but since its perpendicular to B, it describes a circular path of radius r and Lorentz force provid..
The positive ion P to be accelerated is placed in between the two dees. If at any instant, D 1 is at negative potential and D 2 is at positive potential, then the ion gets accelerated towards D 1 but since its perpendicular to B, it describes a circular path of radius r and Lorentz force provid..The table shows the results of a survey in which students were asked w..
The table shows the results of a survey in which students were asked whether they worked part time. a. What is the ratio of students with jobs to students without jobs? b. What is the ratio of students without jobs to all students surveyed? => 1 : 3, 1 : 4 or 2 : 5, 3 ..
Force Work Power Energy and Machines
From times immemorial, man has used machines to help him in his work. Today, we are dependent on machine for almost every task. When we think of machines we always tend to think of big and complicated units with many moving parts like wheels and rollers and gears..
Result
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