Answer:
W=16.58J
Explanation:
initial information we have
work:
stretched distance:
from this, we can find the value of the constant of the spring k, with the equation for work in a spring:
substituting known values:
and clearing for k:
and now we want to know how much work is done when we stretch the spring a distance of 6.5cm from equilibrium, so now x is:
and using the same formula for work, with the value of k that we just found:
Answer:
<u>20 Minutes</u>
<u></u>
Explanation:
Well we know Mph (Miles per hour) is distance over time :
R (rate) = 60
d (distance) = 20
t (time) = Unknown
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
R =
↓
60 =
↓
t =
↓
t = or 0.3333
<em>So basically it would take one third of an hour. Lets change these units to minutes.</em>
60 * 0.333333 = 20
<em>So it would take you </em><u><em>20 minutes</em></u><em> to drive 20 miles on a bus that drives 60 mph</em>
<em />
Hope that helps
<em>~Siascon~</em>