Explanation:
When Joe works alone, the total number of words he typed can be given by:
Total words = (40 words per minute) x (60 minutes per hour) x (2.5 hours)
Total words = 6000 words
Now, when Joe and Mark work together, let 'y' be the number of hours for which they both work simultaneously:
Total words = Words Typed by Joe + Words Typed by Mark
6000 = {(40 words per minute) x (60 minutes per hours) x (y hours)} + {(20 words per minute) x (60 minutes per hours) x (y hours)}
6000 = 2400y + 1200y = 3600y
y = 1.67 hours = 1 hour and 40 minutes
Thus, working together simultaneously, Joe and Mark will take 1 hour and 40 minutes to complete the report.
Answer:
Distance
Explanation:
When using the length of the space between two points, the distance measures the length
Answer:
432 kJ
Explanation:
Kinetic energyof an object is the energy an object has because of its motion.
Answer:
Explanation:
electric field = 2170 N/C
now the speed of the charge particle is given as
here we know that charge particle moves without any deviation
so we will have
now magnetic field in this region is given as
Now another charge particle enters the region with different speed and experience the force upwards