What is potential energy short answer?
Potential energy is energy that an object has because of its position relative to other objects. It is called potential because it has the potential to be converted into other forms of energy, such as kinetic energy. Potential energy is usually defined in equations by the capital letter U or sometimes by PE.
What is the formula of potential energy Class 9?
The potential energy (Ep) is equal to the work done over an object of mass ‘m’ to raise it by a height ‘h’. Thus, Ep = mgh, where g = acceleration due to gravity.
How do you calculate time needed?
To calculate time to complete a work in general if a person A completes 1/n th part of work in one day, then the time taken by A to complete the work = n days. If a man takes 10 days to complete a piece of work; then according to the unitary method work done in a 1 day = 1/10.
How do you solve rate of work problems?
To solve a work word problem, multiply the hourly rate of the two people working together by the time spent working to get the total amount of time spent on the job. Knowledge of solving systems of equations is necessary to solve these types of problems. Example: Latisha and Ricky work for a computer software company.
How do you solve man and work questions?
Solution 1:
- As 12 men complete the job in 24 days, the work amount is 12×24=288 mandays.
- For this group of men the total work amount is 288 man days.
- Thus if 12 men and 12 women work together for a day, it is equivalent to (12+24)=36 men working on the job for 1 day.
How do you solve time and work aptitude questions?
This section will provide shortcuts, tips and tricks to solve quantitative aptitude questions on time and work….
- If A, B, and C working together = 2xyzxy+yz+zx.
- If A working alone = 2xyzxy+yz-zx.
- If B working alone = 2xyz-xy+yz+zx.
- If C working alone = 2xyzxy-yz+zx.
How do you solve day and date problems?
Calendar Aptitude Tricks
- 100 years give us 5 odd days as calculated above.
- 200 years give us 5 x 2 = 10 – 7 (one week) 3 odd days.
- 300 years give us 5 x 3 = 15 – 14 (two weeks) 1 odd day.
- 400 years give us {5 x 4 + 1 (leap century)} – 21} (three weeks) 0 odd days.
- Month of January gives us 31 – 28 = 3 odd days.
What are the month codes?
Contract Month Codes
| Month | Month Code |
|---|---|
| January | F |
| February | G |
| March | H |
| April | J |
How do you know if its a leap year or not?
To determine whether a year is a leap year, follow these steps:
- If the year is evenly divisible by 4, go to step 2.
- If the year is evenly divisible by 100, go to step 3.
- If the year is evenly divisible by 400, go to step 4.
- The year is a leap year (it has 366 days).
- The year is not a leap year (it has 365 days).
How can I learn calendar?
The calendar date calculation goes as follows:
- Take the number code for the year.
- Take the number code for the month.
- Take the number of the day.
- Add them together (making sure to always divide by 7 and keep the remainder)
- Translate your answer, which will be a number 0-6, into a day of the week: Sunday-Saturday.