The correct answer is the energy of the sun
Answer:
the function of the blanket is to keep Kamins warm so he wouldn't get cold
Explanation:
the thick layer of the material acts as a body protector from the cold weather
Answer:
4.28 s
Explanation:
after two seconds (2 s) His friends is
d = 3.5 m/s x 2 s = 7 meter ahead.
in this state, a bicylist start from initial velocity vo = 0 m/s and accelerat 2.4 m/s²
then, when bicylist reach his friend
t friend = t bicyclist = t
d bicylist = d friend + d
-------
d friend = 3.5 . t
d bicylist = vo . t + ½ a t²
d friend + d = vo . t + ½ a t²
3.5 t + 7 = 0 . t + ½ . 2.4 . t²
3.5 t + 7 = 1.2 t²
0 = 1.2 t² - 3.5 t - 7
t = -1.363 and t = 4.28
take the positive one
C is the answer to the first one
Answer:
a) τ= 2.59 MPa
b)y=28.4 x 10⁻⁵ cm
Explanation:
Given that
L= 3.3 cm
d= 7 cm
m= 1000 kg
G= 3 x 10¹⁰ Pa
Force due to load 1000 kg
P = m g= 1000 x 10 N
P = 10000 N
Area A
A=3848.45 mm²
The shear stress τ
τ= 2.59 MPa
Lets take vertical deflection is y
We know that
τ = G Φ
For small deflection
So
τ L = G y
y=0.000284 cm
y=28.4 x 10⁻⁵ cm