Answer:
The answer is 0.00005 meters
Explanation:
In order to determine the diameter in meters, you have to know the meaning of the unit [um]. This unit is called "micrometer" and its value is m.
Then, we change the [um] unit into its expanding form:
50 um=
Finally, the diameter in meters is 0.00005 meters.
It can be 5.64x10^-7
5.64x 10^8
<span>Let's convert the speed to m/s:
speed = (55 mph) (1609.3 m / mile) (1 hour / 3600 seconds)
speed = 24.59 m/s
Let's convert the mass to kilograms:
mass = (2135 lb) (0.45359 kg / lb)
mass = 968.4 kg
We can find the kinetic energy KE:
KE = (1/2) m v^2
KE = (1/2) (968.4 kg) (24.59 m/s)^2
KE = 292780 joules
The kinetic energy of the automobile is 292780 joules.</span>