Answer:
Divide by 1000
Explanation:
As stated in the name, a Kilowatt is 1000 watts. So let's say you have 200 watts and you need them in kW. Since 1kW=1000W, we need to divide 200/1000 to get 200/1000=0.2kW
Answer:
Medium and Temperature of medium
Answer:
a) 5 m from the finish line
b) 4875 s
Explanation:
distance = 1 km
tortoise speed = 0.2 m/s
speed of hare = 8 m/s
time take by hare t reach 0.8 km = 
time taken by tortoise to travel 1 km = 
time taken by the hare to travel 0.2 km = 
time taken by the tortoise to travel 0.2 km = 
distance traveled by tortoise in 25 second = 25 × 0.2 = 5 m
a) when tortoise is 5 m from the finish line then hare will resume the race.
b) the hare will be stationary for = 5000 - 125 = 4875 s
Answer:
<em>Option b is correct: 4.1 s</em>
Explanation:
<u>Vertical Launch</u>
An object launched thrown vertically upward where air resistance is negligible, reaches its maximum height in a time t, given by the equation:
![\displaystyle t=\frac{v_o}{g}\qquad\qquad[1]](https://tex.z-dn.net/?f=%5Cdisplaystyle%20t%3D%5Cfrac%7Bv_o%7D%7Bg%7D%5Cqquad%5Cqquad%5B1%5D)
Where vo is the initial speed and g is the acceleration of gravity g=9.8
.
Once the object reaches that point, it starts a free-fall motion, whose speed is (downward) given by:
![v_f=g.t\qquad\qquad[2]](https://tex.z-dn.net/?f=v_f%3Dg.t%5Cqquad%5Cqquad%5B2%5D)
The object considered in the question is thrown with vo=25 m/s. The time taken to reach the maximum height is given by [1]:

The object starts its falling motion and at some time, it has a speed of vf=15 m/s. Let's find the time by solving [2] for t:

The total time taken by the object to go up and down is

a. This option is incorrect because it's far away from the answer.
d. This option is incorrect because it's far away from the answer.
b. This option is correct because it's a good approximation to the calculated answer.
e. This option is incorrect because it's far away from the answer.
c. This option is incorrect because it's far away from the answer.
Answer:
246ft/min
Explanation:
In this problem we are faced with unit conversion.
We are expected to convert from km/h to ft/min
Given that
1.00 m = 3.28 ft
1km(1000m)= 3280 ft
But we need to convert 4.5km to ft
Hence in ft 4.5km= 3280*4.5
= 14760ft
We now convert hour to minutes
60min make 1 hour
Therefore the convert form km/h to ft/min is
= 14760/60= 246ft/min
The answer is 246ft/min