Answer:
The value is
Explanation:
From the question we are told that
The speed of the rope with hook is
The angle is
The speed at which it hits top of the wall is
Generally from kinematic equation we have that
Here h is the height of the wall so
=>
Answer:
its surface temperature = 54.84 ° C
Explanation:
The density of aluminium = 2700 kg/m ³
Heat capacity = 897 J/Kg.K
radius of the sphere (r) = 0.081029 m
= 25 °C
= 124.978 °C
time (t) = 767.276 s
Using the formula :
where.
Replacing our values ;we have:
T ≅ 54.84 ° C
Therefore, its surface temperature = 54.84 ° C
Probably ice. Not quite sure. Cause of the liquid water.
vf=vi-gt (at peak vf = 0)
vi=gt
44=9.8t
t=4.49 s
time return = time upward = 4.49 s
Answer:
1. True
2. False, I think.
3. False.
4. True
Explanation:
Hope this helped, feel free to respond with questions!