Answer:
24.70 yrs
Explanation:
Using length contraction formula
where v = 0.9910c, Lo = 42.2 light years
L = L₀ = 42.2 = 5.649 yr
to= = 5.649 c.yr / 0.9910c = 5.70yrs
the biological age of Capella = 19 + 5.70 yr = 24.70 yrs
Answer:
Icy roads
Explanation:
There is so little friction you slide on it way more than other roads. :)
Answer:
solved
Explanation:
From the FBD in the attachment we can write that
N+ 80 sin37°= mg
N= 46×g-80×sin37=498.94 N
also, ma= 80×cos37°
a= 80×cos37°/46= 1.3889 m/s^2
also, 10m = 0.5at^2
put a= 1.3889 m/s^2
t= 2.095 secs
d) the speed v =at
v= 1.3889*2.095= 2.91 m/s^2
Acceleration is the rate at which an object picks up speed. deceleration is the rate at which an object loses speed.