Answer:
Is this your ans of this question
For this problem, we are asked to calculate for the distance traveled. We set up the equations as follows:
Distance = 61 km/hr * (time + 20.8/60 s) Distance = 98.5 km/hr * time
We equate the two equations, then we can solve for the time spent on the trip. Hope this answers the question. Have a nice day.
Answer:
part a: 4.25s
part b: 180.625m
Explanation:
part a:
what we know: vi=42.5m/s
t=?
vf=0
g= -10m/s^2
----------------------------------------------------------
equation: vf-vi/g=t
plug in: -42.5m/s/ - 10m/s^2 = 4.25s
-----------------------------------------------------------
part b: 42.5m/s x(times) 4.25s = 180.625m
Answer:
Explanation:
Kinetic energy is given by the following equation:
, where 
is mass in 
and 
is velocity in 
.
Since the cell phone's mass is given in grams, we need to convert this into kilograms:
.
Therefore, the kinetic energy of the cell phone is:
.
False the electro magnet is controlled electrically so its like turning on/off a switch thing of the magnets they have at junkyards.
